makes Twitter.com how it should be
Live updates option (with Growl notifications in Fluid)
Inline reply form on single tweet page (screencast)
Dynamic inline referenced tweets (screencast)
Tab-completion of friend names (screencast)
Minified layout when window is resized at too narrow width
Embedded map on user profiles that have geo coordinates (screencast)
Endless Tweets is written by Mislav.
Images uploaded with plasq's Skitch!