Back in the 1990s, I was right into the whole pocket computer thing - I even had a blog called The PDA Guy and I got my start as a writer reviewing products like the HP 320LX (which I was able to upgrade from Windows CE 1 to version 2 by installing a new hardware ROM). But the grand-daddy of the pocket computer was the Psion. Now, after an absence of almost two decades the Psion is reborn.
Therefore was co-founded by Martin Riddiford, the designer of the Psion 3 and Psion 5 keyboard. It looks a lot like the Psion of old, but adds modern features such as cellular comms as well as the ability to be used as a phone.
USD$300 will get you one of the Gemini devices via Indiegogo later this year. The campaign has already exceeded its funding target so there's a good chance the product will actually see light of day although the November 2017 time-frame seems a little ambitious to me.