WRVS is a K-8 school. We also have about 40 netbooks deployed in two netbook carts running the Open1to1 image. The configuration is well accepted by the students and very easy to maintain. It is easy to customize the image and resave it to a flashdrive. Re-imaging a netbook from a flashdrive takes all of ~6 minutes.
In our middle school we are using Linux on our netbooks and they are stored in 2 carts. After switching from Win 7 starter to Ubuntu Linux from Open1to1.org, I would never go back. The netbooks work much faster and none of the headaches associated with Win 7 starter.