One could say the pico projector boom is over, and now we’re seeing a slow trickle of second-gen devices from companies that bothered to stick with the niche. Without a doubt, these expensive, tiny devices never really took off in the mainstream market, but ViewSonic is hoping to catch some eyes with two new ones in its increasingly small range. First we’ve got the PJD2121, which goes down as the company’s smallest DLP projector to date. Weighing just 2.2 lbs., this device packs a DLP engine with BrilliantColor