I think that there is a cultural issue to consider as well. Android culturally tends to be a locked-down platform that takes control away from the user. GNU/Lin

I think that there is a cultural issue to consider as well. Android culturally tends to be a locked-down platform that takes control away from the user. GNU/Linux is about technology Freedom. You can unlock Android devices with a significant amount of effort, but it would be better to start with something that is fundamentally open. It seems like tablets would break easily, where it's easier and cheaper to replace small screens on Raspberry Pis.