Read some reviews of the new GTX260/280 cards and there were some reviews where an early Beta of this folding client can be seen.
CUDA ready Nvidia cards: series 8 and up.
nVidia GPU client
[don't pay attention to the team number, it's the wrong team
GPU not just for games
In Dutch, but 2nd graph says a lot
It will be a single client for both ATi and nVidia cards.
Client is already folding!
Folding team "Whoopass"
For those who are keeping count: The GeForce GPU will be about 163 times faster than a quad-core processor in this specific application.
Even with just 4-5 test machines, the team quickly moved into the top 5% of all contributors by sheer processing power. Dr. Vijay told us that if only 1% of all CUDA-capable users would start using Folding@Home in their spare time, the Folding@Home machine would quickly be considered the fastest performing HPC computer in the whole world â€“ hitting about 60-80 Peta FLOPS of processing power.
Team summary Whoopass
Folding@Home forum: Nvidia client