I totally agree!
I think this was THE BEST game SEGA made for Sonic in a long while.
I haven't played the game onto the Wii just yet, but I did buy it through iTunes.
I also found a little (small) surprise. If you let Sonic stall for about 20 seconds, he gets out his iTouch and listens to his music and does some nifty dance thing.
Don't know what he does through the Wii if you stalled him, I just thought it was pretty neat.