"As an affordable literacy tool, the Talking Book device offers children and adults a versatile and interactive tool designed for use with locally-recorded readings of existing and newly created reading books."Literacy Bridge wants to bridge the literacy gap by offering a low-cost audio device that plays back educational content. (Read details of their solution here.)
The idea is fantastic and from what I've read, so is the implementation (inexpensive, battery-powered, open source software) and this addresses a critical problem to some extent: the paucity of teachers in villages.
I learned about this company from Slashdot, which will carry an interview with the founder of Literacy Bridge soon. (If you have a question for the founder, you can post it there.)