iOS 5 brings the much heralded iMessage service to the Messages app, beta 2 has added a small but long-requested feature all its own -- the ability to swipe away the keyboard. In current versions of iOS, one you tap into the text entry box it's a bit of a chore to get rid of it again, which is annoying if you want to see the full screen view of your messages.
Now, with iOS 5 beta 2, you simply touch above the keyboard and swipe downwards, and the keyboard goes away. Simple. Sweet.
Again, a minor feature to be sure, but one that will no doubt be appreciated by many.
[Thanks to everyone who sent this in]