Move is more casual than the DS3? Wot?
A control scheme isn't hardcore or casual. Games are hardcore or casual. The Wii doesn't have such an enormous number of casual games because of the Wiimote. It has an enormous number of casual games because of the enormous number of casual gamers who played the original casual games on Wii (i.e. Wii Sports).
Move will succeed (somewhat) because it overlaps with the Dual Shock. Developers don't have to make Move games, just make regular games and add Move support, and the games will work with both control methods, as they work on Wii with the Classic Controller and Wiimote. Like the Wii, one control scheme will usually be better than the other, but it'll be fine, because everyone has both.
(Former) Lead Moderator and (Eternal) VGC Detective 
