I'm 90% sure this is Sean Taylor's probehttp://www.penguinmagic.com/p/S12120
Based on the thickness of card ESP cards (they look thicker than normal on the vid, but it is hard to tell). And the fact the back of the cards are blank, therefore not marked in any of the usual ways. Also the choices appear to be free choices which makes me think that he's using Sean Taylor's device, but its hard to be 100% sure.
Interesting, Yes I have seen it being performed twice, the first time he used thick cards (almost tile like), the second time was with seemingly blank card in the video. Any other possible reference or way of doing this without the $500 gimmick strapped to it?