Planet Computers' Gemini could serve as a phone if you really wanted, but it was ultimately a PDA first and foremost. It's keenly aware of that limitation, however -- the company has launched a crowdfunding project for the Cosmo Communicator, another clamshell QWERTY keyboard device that's intended to serve as a phone, not just a pocketable productivity machine. You'll still find a 6-inch display and camera on the inside, but the outside now includes a 2-inch screen, a 24-megapixel camera and a two-orientation microphone and speaker combo. You can take a call without answering blindly, and snap photos beyond selfies. It's closer to a hybrid phone like Nokia's E90 Communicator than PDAs like Psion's lineup.