Great idea, really simple and nicely executed. I submitted birdsong.fm and it looks aces. One bit of feedback I would give (others may have already suggested this) would be to allow me to regenerate the site until I am happy with colour selections etc without having to click back. Other than than awesome site, great job.
MatchMaker.fm
ReDoodle
Startup Stash
Emojiyo Keyboard
Appsites
ZoomCo
Tinido
King for a day
JamSnap
Arc