We've covered Air Display from Avatron ever since it landed in the iOS App Store in early 2010. The popular utility lets you use your iPad as an external monitor for your Mac or Windows machine. Just like any standard external monitor, Air Display lets you extend your desktop or mirror it onto your tablet device. With the release of the retina iPad and a new retina-capable version of the iOS software, Air Display just became a lot more compelling for new iPad owners.
To get started with Air Display, you'll need a small app that runs on your desktop and a companion app for your iPad (or iPhone). Setting it up is as
