it could be that the 70% cost reduction is from the production of a new and redesigned ps3 model, like maybe a slimmed down ps3 and not the current model
edit: like carl said
"Kinect" Games I am really excited about (Click for videos)
Kinectimals Dance Central Kinect-Sports Kinect-Adventures Your Shape Kinect-Forza
Owner of : slim 1000 + 80GB DSlite