Say you own a Magic Mouse or a multitouch Macbook: gestures are great, aren’t they? You can perform actions by simply tapping / moving your fingers on the multitouch surface and this is a huge time saver in my opinion. Gestures are even better than keyboard shortcuts sometimes.
Now, Mac OS has a big problem with gestures: you can’t assign custom gestures to the applications you like. I mean, why can’t I tell Tweetie to refresh with a simple gesture? Now, I’d hate to say so but..
..There’s an app for that.