Avatron Software has just come out with an awesome little application that allows you to pull off a few awesome little tricks with the AirPlay functionality on your iPhone, iPod Touch, or iPad. It’s called “Air Display.”

Two versions of this application are availalble, and you do not need both versions for it to work. The Mac OS X version turns a secondary Mac into an extension of your screen, given of course that you actually have two Macs around you. Alas, the impressive version of this is the iOS app, which is likely going to be used more often, and it’s way cooler.

Air Display iOS, if used with an iPad, is easily the best way to work this. the iPad screen is big enough to actually work as a screen expansion (second screen), and it’s portable enough to allow you to work conveniently on the go. If giving a presentation to a small group of people, in a place without a projector (first off… why are you doing that?), than this will save you, kinda.

Of course, a secondary monitor is always the best way to do this type of thing, but if you already have an iPad, and didn’t really want to pay a ton of money for an Apple Display, this may not be such a bar idea. You can pretty much use your Mac desktop as a touch screen with this, although it’s main purpose is to expand your screen, like an external monitor.

It’s important to note also that this is being done wirelessly, or via ethernet, and it’s not the same as a wired connection from an external monitor. The devices will have the limitations of the network and computer power.

The iOS version will set you back $9.99, while the Mac variable, unfortunately, is $20. If you believe you can benefit from it’s functionality however, than this may not be such a big deal (businesses and such).

DOWNLOAD for iOS Device

DOWNLOAD for your Mac

Here are the details, from the Developer:

*** FEATURES ***

Air Display’s performance is extremely responsive, employing a unique dynamic compression algorithm. On a typical Wi-Fi network, mouse cursor refreshes are indistinguishable from a wired mouse.

Air Display works in both landscape and portrait configurations. Just rotate your screen, and it automatically reconfigures.

Air Display makes a laptop much more useful. Adding the iPad’s 1024×768 display nearly doubles the screen area of a laptop or netbook.

Air Display not only gives you a wireless computer screen extender, but also works as a tablet input device. You can use your finger to draw directly on the screen’s surface. Try it with a calculator app, painting tool, or music control surface! Simple gestures allow you to operate the right mouse button and scroll wheel.

You can connect to Air Display from both Mac and Windows. And because it’s a universal app, it works on an iPad, iPhone, or iPod touch.

When you rotate the screen, or disconnect and reconnect, your windows are automatically repositioned appropriately, so you don’t have to drag them back to the iOS device.

You can choose to connect automatically to Air Display every time you launch the app (Mac only, for now).

*** USE CASES ***

• Fill your Air Display screen with your utility apps, like iChat, Mail, iCal, and Calculator.
• Amaze your friends by playing Flash animations on an iOS device!
• Graphic design: Make Photoshop and Illustrator usable on your laptop by putting your tool palettes on the iOS screen.
• Music: Use your iOS screen as a wireless control surface for Logic or Pro Tools.
• Programming: Use the extra display area for such auxiliary development tools as Console, Terminal, and the Debugger.
• Business: Move all of your iWork and Office palettes and inspector windows onto Air Display, and let your document fill the screen.

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