Yes, though I don't have the links, since I don't save the links to things I dislike. In general, mismanagement of the project and a belief that "technology" is somehow equivalent to "education".
I see the Criticism section on Wikipedia is several pages long.
Just read this article, which describes a splashy, interesting narrative which jives nicely with my worldview. Which makes me suspicious.
http://dvice.com/archives/2012/10/ethiopian-kids.php
So this sounds really inspiring and stuff, even subtracting some obviously sensational stuff (I assume "hacked Android" means "opened up the preferences dialog and flicked a switch"). I've poked around a bit and found similarly fluffy pop-philanthropy articles. Anyone know if there's more reliable information about this out there?