Tweetbot has been updated to version 2.1 on both the iPhone and iPad. These bring several new features and improvements to the app. Most importantly, the apps now support tweet streaming when connected to wifi. This means that when the app is open, there's no need to refresh, new tweets will add themselves to the feed, and the unread count will automatically update. To make it easier to jump to where new tweets are coming in, double-tapping on the timeline button will jump to the beginning of unread tweets.
The iPad version of the app has been updated to support the new iPad's Retina Display. The iPhone app supports the Camera+ 3.0 APIs for using that app to capture, edit, and share photos from. But these features pale to the single most important one: the new tweet sound only will sound when there's a new mention, direct message, or the timeline is manually refreshed. No longer will we think someone replied to us while visiting a web page from within the app! Our long national nightmare is over!