Rock star mac/iPhone developer Atebits has finally released information on the forthcoming Tweetie 2 for both iPhone and Mac. Tweetie 2 contains a ton of new features, including full data persistence and offline mode, drafts manager, contact integration, MapKit integration, a completely revamped draft screen, native integration for a ton of external services, the ability to post video and add multiple attachments to a tweet, improved gesture shortcuts, and much more. Whew.

Tweetie 1 is already far and away my favorite Twitter client for both platforms — needless to say, I’ll be downloading both of these updates as soon as they’re available.

Update: Screenshots available on Mashable, TechCrunch, and iPTIB.