Earthtrek has rolled out the world’s smallest projector. Is it even smaller than this Nano Projector? This HongKong Company claims that its 90-805R projector is the smallest in the world. It measures 4 by 2 inches. It is said that this projector has the capacity to throw 22-inch diagonal image. This extremely small companion is equipped with an A/V input and an SD card slot. As there are a number of mobile projectors rushing out in the market, will it create sensation?