http://www.youtube.com/watch?v=tp-d1SyBYWA

ADNS-3050.
Likely to have no prediction.
Claimed tracking speed up to 160 IPS. (4 M/S)

Youtube Comment:

"2000 DPI ROFL" with 49 likes. Well jeez, no wonder mouse manufacturers just don't give a fuck anymore.

Edit: Ignore his "claw grip"