http://www.youtube.com/watch?v=NSZmdASwc3I
http://www.youtube.com/watch?v=hxBGGWDk3Os&feature=related
http://www.youtube.com/watch?v=biHzpgxyYSU&feature=related
Singstar Dance looks fun, there's no skeletal tracking like with Dance Central, but that's because the PS Eye can only do skeletal tracking on one person on the screen. Will sell well if they advertise I think.