As a CR-48 owner, I think this is both good for education and bad. The good parts of this is that ThinkPad's are well built machines and this particular model has been ruggedized. This form factor seems perfect to me for the educational environment: light, portable and rugged. The negative is ChromeOS itself for an educational environment. It's a fine machine for doing Internet research and light writing, but more tr…
Unless you're teaching CS or networking or something along those lines there is just no benefit to allowing students fiddle with the computers that isn't completely overwhelmed by the negative effects of students accidentally hosing the machines.
I guess in a perfect world we would let everyone tinker with everything. You never know where the next brilliant idea will come from and all that. But in the world we live in, there are costs and there are benefits. When the costs of something dwarf the benefits of that thing you don't do it.