What about the new Viper cpu cards?

[neongod]

I've seen some new turbocards at www.vesalia.de
Viper 040, 060...

Does anybody tried a card one of these? What about speed, stability? Does it fit well in a desktop A1200 case? How is the heating? is it fire hot?
What about memory speed, map rom function and support..?

Who is producing that card?

any information are welcome.

thanks,

neon