[RC5] RSA Secret-Key Challenge Termination

[Coran Fisher]

In the ancient texts Décio Luiz Gazzoni Filho wrote:
> Just to make things clear, this is specifically for G80 GPU cores  
> (the 8x00 series), it won't run on anything else. The performance is  
> excellent in the 8800GTX model, pretty good in the 8800GTS model, but  
> probably abysmal on anything below that, given the way Nvidia  
> crippled the lower models.

Would I be correct in that it would only support Windows?