I am also working on a version of the BitCoin CUDA Client and will do all that I can to help this project. It will be opensourced as well, for the same reasons nelisky stated. I will test this first version out on my GTX 460(borrowing from a friend

) as soon as I can. Also, the pseudocode I've been writing up should be quite a bit faster than this currently is because it is incorporating FPGA styling and CUDA programming.
I should have something up of my code up after the weekend.