I really like the Worldreader approach. They've done right what so many others have done wrong. I also agree that getting digital content - African digital content - is the great challenge and could have the most lasting impact. Digital versions of existing books are rare, availability of them (books in any format) even rarer. Getting those books e-published and then sold - at $1 or even $2 or $5 - would help drive up literacy and excite African writers. While I am still a bit on the fence on literature (vs. short novellas) read by phone, I am excited by the mobile phone app - a great move to get that content anywhere on any device. And to help with that very real scale problem, I keep talking them up and pitching them in literacy project meetings.