I believe you're referring to the Quiktune Flipper, which is a full-containment dropaway rest with no strings or cables. I've held/played with the rest at the ATA show and at NAP's office and it's pretty cool. Very simple, very easy to use, and from the looks of it very reliable. For the price point, which should be around $50, it's hard to beat.

I have a short video clip of Tom Staszack from NAP talking about/showing off the rest at the ATA show that will be posted in the official HNI Field Journal later today. As soon as it's up I'll pop a link in here.

You can also check out their site at http://www.newarchery.com for more info on the rest.