Beta works - Awesome!
I had to make sure always zoom was off for the one app I tried. It works with Chess with friends, rotating the screen, so I don't have to rotate my Ipad! There is one bug, as with 2x, the top and bottom borders are cut off, so the submit move, resign buttons and move arrows on the bottom are unavailable, and the seek game and chat buttons on the top are not available. The usual ipad finger motions to shrink the screen does not work.
Retina developers - If you read this forum, can u add this feature in a patch. Also, it would be awesome if it could rotate native Ipad apps that don't rotate, like Zynga's Words with Friends. The settings only list iphone apps. Anyway, for $2.99, it is awesome enough!