Neat. That link said you needed -20 C for it. Perhaps if I had my liquid cooling loop with me I could get it working, but I played around for a few minutes and had no luck sustaining that cold with my TECs.
hehe jase, i got -20C by sticking my pelts heatsink in water! but that is as low as my temperature probe can read, so if it went lower, i wouldn't know :-/