3M's partnered up with Roku to provide a "big-screen" cinema experience from the comfort of your home. Announced today at a joint event, the Streaming Projector is a 4.3 x 4.2 x 2.0 inch palm-sized device that can project images up to 120-inches across walls or any other smooth surface. The 1lb pod-like gadget has a battery life rated at just under three hours -- a little more than the running time of most blockbuster movies -- and also features a 3.5mm headphone jack for audio out, in addition to an inbuilt speaker. Of course, you need content to pair with it and that's wher
