The spiritual successor to the Psion Series 5 is the Cosmo Communicator: https://www.www3.planetcom.co.uk/cosmo-communicator https://www.www3.planetcom.co.uk/co

The spiritual successor to the Psion Series 5 is the Cosmo Communicator: https://www.www3.planetcom.co.uk/cosmo-communicator https://www.www3.planetcom.co.uk/cosmo-communicator Similar size, but has the classic Psion keyboard (it was designed by the same guy, Martin Riddiford) and runs Android or Linux. As a phone, it has an external 2.5" touchscreen. I've got to say that the software lacks polish -- Planet Computers are a very small firm -- and while the design is an improvement over their earlier Gemini PDA, it's not a great phone. I have higher hopes for next year's model, the Astro Slide, which seems to combine the best of the "pocket laptop" and touchscreen worlds (assuming they get it to work properly): https://www.indiegogo.com/projects/astro-slide-5g-transformer/ https://www.indiegogo.com/projects/astro-slide-5g-transforme... ... Oh, and it's about half the price of the Surface Duo (which looks vastly more polished but also rather expensive).