The unique issue here is that if Maemo and the software that runs on it does not attract enough users, then the hardware itself disappears. That doesn't just mean the loss of the hardware but the loss of the ability to have an open-source environment on such nice hardware. There is no corresponding threat to Linux on PCs. None of us are able to build a pocket-sized Linux computer like we can build a desktop PC. As a result, [I]"FOSS purism" is possibly a threat to NITs in a way that it isn't a threat to Linux/FOSS in general.