It's a superb portable writing tool, as was the Psion 5 in its day. The keyboard is better than anything available on any tablet or pocketable device in the world in any market. It's that good. No Surface or iPad addon comes even close; it is an order of magnitude better than any mainstream vendor's offering.

I found it almost useless as a phone or tablet, though. But I have several of those so I don't care.