I'm not sure there would be a huge fan revolt. Obviously he can still play and as a backup mentoring Edwards I'd be estatic. We have no one behind him that has experience and given that Vick will have to earn a spot again, I think it could be an exceptional value to grab him.
Vick's best bet is to end up on a team like ours and hope to shine his way back to the top, while we groom him for trade.