I have seen smartphones that had a built-in projector, but I don't think this really caught on. I mean, you don't see latest versions of the iPhone or Galaxy S having projectors on them. Promate has created the LumiTab, which is essentially a tablet with a projector, and one that is capable of a projection of up to 100 inches. Yes, that would be pretty easy for making … [Read more...] about LumiTab comes with its own projector