I don't think this is closer to OLPCs goal of providing a laptop per child. OLPC was, literally, "batteries included," they even had a charging solution for the batteries. The OLPC device as a tool for kids to learn about computers and programming was just one facet of its intended use. It was also a notebook, and a textbook and a communications device. The RasberryPi needs a screen, a keyboard and power, and even with those things, a Kid isn't going to be able to carry it arround and use it anywhere they want.

None of this is a criticism of RaspberryPi. I think cheap computers that kids can screw up and fix is a very good thing. And often, less is more.