iOS: Tweetbot, our pick for the best Twitter client for the iPhone , got an update today with a handful of new features, including a new font, a better thumbnail display, and the ability to instantly mute tweets.
The new font is called Avenir and fits in with the look of iOS a little more closely than the default Helvetica Neue. You can also set the size which image thumbnails appear on your timeline if you like the larger thumbnails found in the official Twitter app. Finally, if you're the type to mute specific keywords or hashtags, Tweetbots now gets rid of those from your timeline instantly instead of waiting for a refresh.
Tweetbot ($5.49) [iTunes App Store]