MobileTwitterific, created by craig.hockenberry and llucas, is a Twitter interface for the iPhone. It features a great looking UI, as well as auto-refreshing and audio notifications.

It is available via iBrick/Breezy and Installer.

<a href="http://code.google.com/p/mobile-twitterrific/"><img src="http://www.modmyi.com/appimages/mobiletwitterific.jpg"></a>

<a href="http://code.google.com/p/mobile-twitterrific/">http://code.google.com/p/mobile-twitterrific/</a>