Before a lot of people said with PS3's new tilt sensing controller that they obviously had copied Nintendo's Wii's tilting sensors also in their controller, but I have proof that Sony been had tilt sensing controllers and they need to give us more than just something they threw away in the past.
Years ago for the PS1 Sony put out the Tiltforce controller which gave titl sensing action in the controller later a better version the Tiltforce2 came out, but equally sold bad and it had vibration too so Sony is lieing that it can't fit vibration along with the tilt sensing.. Here's an web page for proof on this subject
http://www.gamevortex.com/hr_pelican_tiltforce2.html
See Sony didn't copy the Wii.