Close mission control by repeating gesture

The best way to do this is with one of the more obscure settings in BetterTouchTool It works like this: A three fingered right swipe brings up the application switcher. Lift one finger to covert it into a two finger swipe and slide to whichever application you want.

It becomes an incredible natural and fluid gesture The beauty of the gesture is that it works anywhere on the screen and you don't have to position the mouse over the icons.

1. In BTT assign the three finger swipe right to the application switcher.
2. In BTT Action Settings -> Stuff(App Switcher) -> Use special application switcher

This answers the problem that bisko and senseful had above and avoids the last click or the necessity to be over the icon.

Single best gesture in my 'gesture vocabulary' and I have gestures for everything!

This annoyed me too, and it doesn't seem the solution is entirely satisfying — we'll just have to hope that Twitter for Mac gets updated soon to be better compatible with Lion.

If you have "Swipe between pages" set to "Swipe left or right with three fingers" or "Swipe with two or three fingers", then left/right three-finger swipe gestures will work in Twitter.

If you have Mission Control & App Exposé set to "Swipe up/down with three fingers", then you can hold ⌥ Option to use up/down three-finger swipe gestures with Twitter. (I'm not sure why, but if you have these set to 4-finger swipes, it doesn't seem 3-finger swipes work at all in Twitter.)