Effective immediately, all NVIDIA gamers may receive a free copy of PortalTM: First Slice, a special version of the award-winning new game from Valve, by visiting http://www.steamgames.com/nvidia1 and “Taking the test.” Steam will then auto-detect the presence of NVIDIA hardware and make Portal: First Slice available immediately, free of charge. http://www.nzone.com/object/nzone_orangebox_promo.html