If a listing from Live Marketplace online in the US is right, it confirms that Sega isn't developing Sonic the Hedgehog 4.
Specifically, instead of Sonic Team making the game, development duties have gone to Sonic Rush makers Dimps.
We'll ship an email off to Sega to confirm if that's the case.
Last night, the first proper gameplay footage was leaked, and it's looking good, Radioheads.
Episode I in a four episode arc will release this summer for PSN, Xbox Live and WiiWare.