It is shaun. I think it's ridiculous. If I wanted to wave my arms around looking like an idiot, I'd buy a Wii. Saying that, I won't be buying one of these for my PS3 but if we're forced to use it for well established game series' that previously didn't have the need for it then that's completely wrong imo. Fair enough if they bring out Wii Sports style games where they use these motion detector peripherals exclusively.
Video games are supposed to be about sitting on your backside and having a good old button bash. If I wanted the exercise I'd go for a run/play football/join a gym or even buy a Wii. I don't want my 'hardcore' consoles and games dumbed down and turned into a kiddies playground thanks.