New footage (below) leaked from Sega’s own ftp site shows the recently announced Sonic Unleashed game in action. There is still very little known about this game other than:

• it has a generous budget and development team
• it will most likely come out on the Wii and XBOX360
• it’s release date is in November, 2008
• there will be a new character introduced

There is also an unconfirmed rumor that you will be able to play as a werewolf form of Sonic (which would explain the screenshot).

More screenshots, including hi-res, and info here.