Thanks for all the good info. I am confident I would be able to install SailfishOS myself. Are you saying that if the device isn't unlocked, I won't be able to unlock it myself? Is there any way to find out before purchasing? ____________________________ Even after glancing at all those pages, I am still unclear on this: Sailfish3.x is the current version, yes? What is SailfishX then? How are those 2 versions related?