The "official" twitter client release of the previously named "Tweetie 2" is out, and Twitter for iPhone. The icon change is a bit strange to me (it's now blue instead of silver), but other than that it's mostly the same. Some cool stuff for when you're not logged in, and the search screen is a bunch nicer, but other than that it's mostly the same old Tweetie (which isn't a bad thing, as that's my 99% go-to app for twitter on the iPhone). Review and screenshots in the linked article.