Just thought of something. Would be nice if you could use your PS3 to crack wpa. If I remember right the PS3 has The Reality Synthesizer is a modified GeForce 7800. It has a core clock of 550 mhz, 24 pixel-shader pipes each capable of 27 flops/cycle, and 8 vertex pipes capable of 10 flops/cycle, for a total flops performance of 550mhz x (24x27 + 8x10) = 550 x 728 = about 400 gigaflops. Wonder if you could get cuda working on it? The PS3 is a real power house at that for reality little money.
Got no idea if this would work or not.