Engadget: Though there are bigger multitouch screens out there -- and ones that can support more simultaneous touch points -- 3M's brand new C3266PW is the company's largest, said to be suited for industrial-strength installations with multiple simultaneous users (the company is quick to note that the ultra-wide 178-degree viewing angle along both axes is great for that, since folks can crowd around and start touching). (3M C3266PW, Gadgets)