Thanks for the input everyone.
There's always the Gemini, I suppose. As Jolla have announced they are(?) working in partnership with Planet Computers to bring Sailfish to that device(?)
Cheaper than the Pro1 but not as refined looking and if you want to use it on the move you have to open it up like a laptop as there's no access to the screen while it's closed, be a bit of a pain texting while you're walking. Storage isn't as impressive as the Pro1 either.