This is yet another demonstration of the deep misunderstanding some people have. How many times does this have to be repeated? The tablet and the phone run the same OS! Sure there are two different builds for two different CPU architectures but that is no big job for an automated build (Jolla does use those, right?). The only extra effort is testing on different screen sizes but since there are only two and they want to support OEM devices, they will have to run those anyway.