Ask HN: Coolest iPhone App UI/UX's? Post Your Favorite
My favorite (and their website for that matter):
http://awesome.taskrabbit.com/017e0
Twitter, Robotcat Apps (Outside Weather App), TeaApp, and despite their situation, AirBnB, all come to mind. Any others? clickable http://awesome.taskrabbit.com/017e0 (email is just for new macbook air contest, you can download the app w/o it, just don't enter your email if you don't want to try to win)