Unfortunately I'm more end user than developer... I mess around with code and might port an application here or there, but I'm not looking to buy a proof of concept or a development platform, I'm looking to buy a real-world improvement on the N900. Which I'm still hoping that Jolla is soon to be.

For me I think LTE support is a blocker; I am not keen (and it makes little financial sense for me) to go to the great lengths to upgrade the phone and SIM without taking advantage of a better connection, so I'll keep an eye on the next updates. When that works, I can probably live with or find a way around the other issues.

Thank you to all for your input. I shall keep watching, not jumping in yet, but not buying into anything else either. I suspect I will buy one sooner or later...