Website is up as seen in the front news page.
Loving the music
Here the music all ripped for those who'd like to download them. All in one pack.
http://www.segaloco.com/!crap/retro/Colors_Music.7z
I DL'd this over at TSSMB, great tunes!
The unknown track is Asteroid Coaster, the unseen presumably final stage with a Halloween vibe.
edit: looking over the stage listing for Colors got me thinking about past 3D Sonic games and how their stage counts compare (not counting boss battles):
Sonic Adventure
10 Stages, 35 variations spread over 6 characters
Sonic Adventure 2
36 unique stages spread over 6 characters
Sonic Heroes
15 stages featuring four difficulty levels (58 slight variations)
Sonic 2006
10 stages, 29 slight variations over 8 characters
Sonic Unleashed
10 worlds, 79 acts (including DLC, many are reworkings of the same day/night stage)
Sonic Colors
(early estimate) 6 worlds, 7 acts each = 42 total (not including multiplayer levels)