I'll bite: what non-consumer level smartphones would you suggest for schools? What OS would you suggest (given the discussion here, it obviously can't be the consumer-level iOS, Android, Windows Mobile, or any other OS that runs on a phone a consumer can buy in a consumer mobile store).
I wouldn't suggest any smartphones for schools, I'd have them removed at the door and given back at the end of the day, but that's probably because I have a lot of sympathy with Cliff Stoll's views on computers in classrooms.