Twitter for iOS updated with "quick bar" and new friend finder
More useful are improvements to the "new tweet" interface, especially the addition of more obvious buttons to add a photo or tag a location. Usernames you're following now autocomplete, as well, making it easier to write replies on the go. There's also a new friend finder that scans your iOS contact list for friends with Twitter accounts. Whether these new features outweigh the annoyance of the quick bar is a matter of personal preference.
You can download Twitter in the App Store.