NVIDIA's 3D Vision is impressive and all, but one trade-off you'll have to accept when you put on those active shutter glasses is a markedly dimmer field of view than what you'd get if you settled for plain-Jane 2D gaming. Well, the outfit just unveiled the second generation of the technology -- appropriately named 3D Vision 2 -- and this go 'round it promises not to strain your vision quite so much. These shutter glasses have a lens that's 20 percent larger, with NVIDIA's new LightBoost technology promising -- wait for it -- a brighter view. As an added perk, the frames have been rejiggered to be lighter and more flexible so that you can comfortably wear head
