We’ve been keeping our eye out as more iOS 4 app updates keep hitting the App Store filled with multitasking, state saving, Retina Display-ing goodness.

Hit the jump to see some of the latest we’ve found!

BeeJiveIM with Push 4.0

One of the best IM clients on iPhone gets better with:

• iOS 4.0 compatibility. Background support for iOS 4.0 devices.
• iPhone 4 compatibility. Enhanced image resolution for Retina Display.

[iTunes link - $9.99]

iHound 3.0

We spoke with iHound back at Macworld and now their already solid location tracking service has been beefed up:

If your device supports multi-tasking, then it checks in with the iHound server every 10 minutes, and the following new features become available for you in your Security Dashboard at www.ihoundsoftware.com:

• PowerSave Tracking: Your device determines its location, transmits to the server, then shuts down until the next check-in.

• Full On Tracking: Your device’s GPS will run continually as iHound transmits to the server every 30 seconds.

• Siren: Plays a siren alarm on your device. It will not quit until you shut it off from the web site.

[$3.99 - iTunes link]

Line2 2.4

No Google Voice app on iPhone? No problem, Line2 offers many of the same services, some extras for business, and now background support so you can use it like a real phone replacement. (Requires Line2 service).

• Receive calls while Line2 is in the background
• Continue talking on a call even when you switch away to another app

[Free - iTunes link]

Omnifocus 1.7

They had us at the purple brush-metal icon.

• In preparation for the new high-resolution display on iPhone 4 we’ve refreshed all of the artwork in OmniFocus. We hope you like the new look!
• OmniFocus now uses local notifications to present due alerts when running on iOS 4 or later, so you can receive alerts for due tasks even if you’re not syncing with a server. (Synced calendar alerts are still available for devices which are running earlier versions of the operating system.)
• OmniFocus is now a multitasking-aware application, allowing it to be quickly suspended and resumed on iOS 4.
• OmniFocus can complete some operations in the background on iOS 4, such as optimizing its database.
• The Completed perspective now includes items from completed projects, not just active projects.
• Fixed a bug which prevented audio from recording in OmniFocus 1.6.5.
• Fixed a crash when tapping “Save” while audio recording was still in progress.

[$19.99 - iTunes link]

PCalc 2.1

If it’s beyond 2 + 3 = apple, it’s beyond me but smart mathamagicians like Leanna tell me numbers are good and PCalc has consistently been one of the best. Now it’s better. And sharper.

• Added support for iOS 4.0 and fast app switching.
• Added support for the Retina display on the iPhone 4.

[$9.99 - iTunes link]

That’s what we’ve found so far, but if you find any you think deserve a post-up let us know in the comments or send us a tip!

iOS 4 updated: BeeJiveIM, iHound, Line2, Omnifocus, PCalc is a story by TiPb. This feed is sponsored by The iPhone Blog Store.

TiPb - The #1 iPhone, iPad, and iPod touch Blog

PCalc [$9.99 - iTunes link] is one of the leading calculators for iPhone and now its computing power has been updated (as in universal binary) to include support for iPad.

PCalc is an (optional) RPN calculator that is great for scientists, engineers, programmers, and students. It includes a list of common constants, an ample amount of conversions, a paper tape that can be shared via email, and support for binary, hexadecimal, and octal calculations. You can also customize the look of PCalc with different themes and digit fonts.

The interface on iPad is rather beautiful in both landscape and portrait. The buttons are nice and big and everything is easy to read. Navigation between the menus is a much more pleasant experience than on the iPhone.

To see PCalc in action, watch the video after the break!

Quick Review: PCalc for iPad is a story by TiPb. This feed is sponsored by The iPhone Blog Store.

TiPb - The #1 iPhone, iPad, and iPod touch Blog

Unlike the iPhone 3GS, the iPad doesn’t have built-in stocks, weather, voice memo, clock, calculator, or compass apps. It does, however, have the brand new iPad App Store, and yeah… there are apps for all that!

Check out our picks after the break!

Bloomberg for iPad [Free - iTunes link] offers not just stocks but news, company info, price charts, trends, analysis and… you get the idea. It could just be information overload on a 9.7″ screen, but that’s likely just what you stockies want!

Weather Channel Max [Free - iTunes link] costs nothing (thanks to Toyota) but packs in the weathery-goodness. Full screen, customizable maps, in-motion radar, local, regional, and national video, and more make it not so much of a replacement as a escalation.

Voice memos for iPad [Free - iTunes link] is the “I can’t believe it’s not butter” of replacement apps. It looks similar to Apple’s iPhone Voice Memo app, but it’s scaled up to iPad size. Unlimited recording, tagging, pause, levels, timer, and email options make it a great fill in option.

Clock… We haven’t found a good replacement for Clock yet. If you know of one that matches the functionality and the grace of the iPhone Clock app, let us know in the comments. And developers — make a good one, with a great icon. Seriously.

PCalc Lite [Free - iTunes] or PCalc [$9.99 - iTunes link] make the iPhone calculator look anemic by comparison. It includes an optional RPN mode, multiple undo and redo, unit conversions and constants, a couple of themes, and much more in the paid version.

Compass HD + Vector Magnetometer / Gravitometer [Free for now - iTunes link] is an app that, frankly, we may not be smart enough to properly describe. It has absolute mode, north mode, declination mode, and relative modes, and a bunch of different display modes for acceleration visualization. Get it while it’s free!

So there you have it, App Store to the rescue! Did we miss any (other than clocks!)? Are there alternatives your like better? Let us know in the comments!

No stocks, weather, voice memos, clock, calculator, or compass on iPad? App Store to the rescue! is a story by TiPb. This feed is sponsored by The iPhone Blog Store.

TiPb - The #1 iPhone, iPad, and iPod touch Blog

PCalc [$9.99 - iTunes link] is a great RPN Calculator for the iPhone but now developer James Thomson is curious as to what users would like to see in an iPad version. How curious? He’s made a cardboard version to play around with (above) and is offering TiPb readers ten (10) free copies of PCalc to tell him what you think!

So, head on over to the TiPb Forums and let him know just exactly which features you’d like to see on that big 9.7″ iPad screen. His favorite ten (10) answers will get a copy of PCalc for iPhone for FREE.

Give-away starts now and ends Monday at 12pm, PT. Promo codes require a US App Store account (Apple’s rule, not ours).

TiPb Give Away — 10 FREE Copies of PCalc RPN Calculator for iPhone is a story by TiPb. This feed is sponsored by The iPhone Blog Store.

TiPb - The #1 iPhone, iPad, and iPod touch Blog

PCalc [$9.99 - iTunes link] has 30 promo codes to give away to TiPb readers willing to help them out with a little survey. Here’s the thing: since “free apps no longer have to stay free”, and in-app purchases are now available to everyone, they’re interested in knowing just which in-app purchasable features interest YOU.

Ready? Here’s what you need to do:

• Download the free version of PCalc Lite [iTunes link]
• Try it.
• Rank the following features from the full version that you’d like to see made available as in-app purchases, in order of preference:
  1. More keyboard layouts with additional functions aimed at engineers and programmers.
  2. More themes, digit styles, and key click sounds.
  3. More unit conversions and constants.
  4. A virtual paper tape and display of memory registers.
  5. More advanced settings for controlling things like number of decimal places shown, thousands separators.
  6. Hex / octal / binary mode.
  7. Multi-line display and multiple memory support.
  8. A coupon code to save $9 on PCalc for Mac OS X.
• Suggest one cool new calculating feature they’ve inexplicably forgotten to include so far (real or fantastic).
• Email your feature ranking and new feature suggestion to survey[at]dragthing[dot]com
• Best suggestions received in the next 24 hours will get a promo code for the full version of PCalc in return. (US App Store only — Apple’s rules, not ours.)

Here’s what a sample entry would look like:

Got it? Good. Go get it and get to it!

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

TiPb Give Away: PCalc Wants Your Input — Has 30 Promo Codes to Prove It!

UPDATE: Just so everyone is clear, the developer did this as a parody, Apple didn’t censor anything. B’okay? Read the full 8008135 story on Three Letter Acronym…

PCalc RPN Calculator [$9.99 - iTunes link] for iPhone has just updated to version 1.8, and the update is… rather unique:

Have you, or somebody close to you, ever turned your calculator upside down and accidentally seen a mildly suggestive word? Have you ever been in a maths class, and had to put up with groups of giggling boys performing elaborate calculations that are not part of the lesson?

Yes, it’s one of the main problems affecting the calculator industry today, the so-called “calculator words”. These otherwise harmless devices can be made to display smut at the press of a few buttons. Added to that, the iPhone App Store is very strict about having inappropriate content in apps. Nobody wants their app to get a 17+ rating, or worse, to be rejected entirely.

Which is why we are happy to announce that the latest version of our PCalc scientific calculator for the iPhone contains a new patent-worthy profanity filter.

Simply enter a number such as “5318008″, turn the calculator upside down, and the offending word will be discreetly censored. Many common calculator words have been included as standard, and we plan to increase this over time via software updates.

The new version also comes, you know, calculator features, and a $9 off coupon for the Mac version (which doesn’t seem to change when you turn your Mac upside down… hmmm… feature parity?!)

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

Quick App Update: PCalc RPN for iPhone 1.8… With Censorship?!

James Thomson wrote in to tell us about PCalc 1.7 [$9.99 - iTunes link], and as usual, the prose is almost as good as the app. Almost.

One year ago, as the doors of the iPhone App Store first opened to the public, PCalc was there. One of only four hundred applications available, and a mere handful of calculators. Now, there are more than sixty-five thousand applications in the store, and calculators are second only to Twitter clients in terms of near-pestilential ubiquitousness.

Metaphorgeddon aside, while we mentioned the new version already, after using it for the day, it was obvious it deserved a closer look. Here are the updates again:

• Faster startup!
• Three and four-line display modes, including complete control over what appears on each line.
• Multiple-memory support.
• Optional HP48-style RPN behaviour.
• Much nicer number display with the “Easier To Read” digits option. It’s now actually easier to read!

It is indeed. I’m not a mathmagician like Leanna, but this really is the built-in calculator on Hulk-serum. Check out the screenshots after the break, and if you give PCalc 1.7 a try, let us know what you think!

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

Quick App: PCalc 1.7

Tapped open App Store and what did I see? Five fresh new iPhone 3.0 feature packed app updates just waiting for me! (Okay, four, I already updated Fring…)

Jaadu VNC [$24.99 - iTunes link] adds support for cut, copy, and paste, remote copy support, and full screen view.

AutoStitch [$1.99 - iTunes link] includes cropping and support for higher resolution out for iPhone 3GS

PCalc [$9.99 - iTunes link] highlights include 3 and 4 line display modes, more memories, option to prevent rotation (Apple needs to add this system wide!), HP48-like mode, copy tape to clipboard, “easier to read” now even easier. to. read. and button easier to press.

QuickOffice [$12.99 on sale - iTunes link] now supports iPhone 3.0 cut, copy, and paste and shake to undo/redo, access email attachments, text wrapping, aligned overflow, and user-friendly indent and align control for docs.

Fring [Free - iTunes link] now offers Push Notification.

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

Quick App Updates: Jaadu, AutoStitch, PCalc, QuickOffice, Fring