You could build a slide out keyboard for yourself and attach it via the usb port on your phone or via bluetooth. I've seen a wireless keyboard attachment for iP

You could build a slide out keyboard for yourself and attach it via the usb port on your phone or via bluetooth. I've seen a wireless keyboard attachment for iPhones already. Maybe to get a larger keyboard you could have a well designed fold up or rollout keyboard that is compact? You might also be able to use your phone as a thin client if you can put up with the limited screen space. There are some good systems like Apache Guacamole. It's too hard for me to use but maybe it's possible with a phablet or diy smart glasses and a bunch of determination. :)