Wired article:
http://www.lugnet.com/jump.cgi?http://wired.com/news/technology/0,69946-0.html%3Ftw%3Dwn_story_page_prev2
Pluses:
Rotation sensors in the motors
Bluetooth
Ultrasonic sensor
Programming model based on LabView (Mac compatible!)
Minuses:
No AC power adapter
not backwards compatible
not sure I like the new sensors
Apply to be a tester here:
http://mindstorms.lego.com/community/default.aspx
Brian
(seriously tempted)