An anonymous reader writes "Raspberry Pi was designed for education. As any popular product is bound to, Raspberry Pi has been criticized a lot for things like lack of a box, absence of supplied charger or even WiFi. Raspberry Pi has a much more fundamental flaw, which directly conflicts with its original goal: it is a black box tightly sealed with patents and protected by corporations. It isn't even remotely an open platform."
The author thinks that patents on ARM are a serious threat to the openness of the platform (among other things like the proprietary GPU blob needed to boot). But even the FSF doesn't go that far
. Wired had an editorial with the foundation justifying "selling out a little to sell a lot
" that has a lot of info on the choices they had to make to hit their cost target.