TweetGenius has been at v1.1.2 for quite a long time, but I just checked and noticed it is now v1.1.3. Not sure what, if anything, has changed. Just thought I'd let everyone know. Here's the link: Beejive - instant messaging anywhere
I've only seen one goofy bug. If I keep the timeline open when closing the app, it keeps the new tweet count on the home screen (even though I've marked them read). If I close out of the timeline into the main app screen, the tweet count disappears.