Downloaded this 3 minute demo... First impressions: Looks great, some really cool behind the back perspectives, but the motion is all just too blurry. I ran into 2 bad guys because I couldn't even tell what they were.
Wish I had a 3D TV to check this out in 3d. If they don't significantly tweak this (and they won't its Sonic Team) I am prolly gonna pass on the console version...
The 3DS version, however...