I'd like to hear a little about the educational successes that RPi may have achieved since launch. That was the goal, right?
Something to consider is that the RPi wasn't launched into a vacuum like the earliest microcomputers were. So it won't have as profound of an impact.
At the lower grade levels, around 3rd through maybe 8th grade, Scratch seems to be a pretty big deal. Somehow, Scratch has been installed on every computer in our house, and a couple of Arduino boards arrived shortly after S4A was mentioned recently here on HN. I'd encourage Scratch in the schools before RPi.
The RPi has certainly been educational for me. I'm sure it wasn't the first, or the best, little Linux board. But in part due to hobbyist interest in it, there's a lot of good tutorial information out there, making it easy for someone like me (minimal formal training in programming and electronics) to create some pretty cool things.