The first commercial pico-projectors will probably appear in 2009-10, initially as stand-alone devices, and perhaps as plug-in accessories for mobile phones (rather like the plug-in cameras that predated full camera-phones). If they prove popular, projectors could then be incorporated into all kinds of devices. Will they be powered by DLP, single mirrors or holographic diffraction? Consumers will not be bothered by such details—they will be looking at the bigger picture.

for use in phones, etc

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