Physical keyboard? Yay. Messages in natural language are one thing, ssh'ing into a machine or writing code is an entirely different topic.
Open systems thrive with exactly the kind of software I use almost exclusively. I can live without any mobile games - srsly, get a handheld or build one yourself[1] - and I don't use many other services I couldn't find alternatives for.
https://careers.imgtec.com/cw/en/job/495752/linux-graphics-d...
Edit: to be honest; the Pyra is almost perfect for me (when using it with a $30 Android tablet as monitor it is very close). Currently my perfect all day computer would be a 10 inch tablet running (native) Linux with a stand, 3g and 15+ hrs battery life. I really like the MS foldable mobile keyboard but the only Linux ready stuff are full laptops or chromebooks. The chromebooks have no 3g unfortunately.