At the Google Media party on Monday, there was an olpc on display. I had noodled with the board level electronics but I had not until then gotten the chance to mess with the hardware. I think it's pretty neat.
You'll notice a couple of things, The cool wireless ears, the nice display. It weights a little more than a thickish O'Reilly book (Tim, not Bill) , the keys are softish and water resistant. There are 3 ports, and the screen rotates around so it can be read like a book. There are 3 mousepads that you can use either for mousing or for a signature pad.
The whole things can be gamey, with the dpad and direction buttons on the screen. There are speaker/headphone and microphone jacks and there is a built in handle. It was pretty neat. I want to try to give one next year to the students and mentors in the summer of code to help bootstrap cool apps for it. It wouldn't add a significant amount of money to the SoC program, and would be really neat for everyone involved.