I don't know what you think about Chromebooks, but school districts in the US and Europe have caught on to the web-centric devices.
Over 500 school districts across Europe and the US are currently deploying the Google-powered laptops for learning the web way. Specialized web app packs and that a leasing model are already keeping the material relevant and the hardware evergreen, but new certification for US ready-for-college criteria will go a long way towards making sure principals everywhere take a shine to Chrome OS in the future. Most school districts are still on the Windows and Mac route, though. I also saw that some districts and governments overseas are adopting Ubuntu, but haven't really seen anything in the US.