I just found out that there is a new Sonic the Hedgehog came coming out: Sonic Unleashed (http://en.wikipedia.org/wiki/Sonic_Unleashed).

Sega is really trying to revamp the Sonic franchise with this game. They are switching from 2D to 3D seemlessly during the levels providing the best of both words. In addition, they have introduced a slower, exploring, hack-n-slash game mode as well.

It looks really interesting!