Well, an unnamed Sonic RPG (developped by Bioware) is being developped for the DS. Talk about it here.

Destined for failure.

The last thing Sonic needs is an RPG.

RPGs are slow paced, and usually driven mainly by story. Some would say they have "deep" plots.

Sonic needs to move away from those things, fast.

Well, it won't be out until late next year. We'll just see what the critics have to say. Nintendo Power tries a demo on the next issue, I'm gonna check it out.