OLPC in Greece has distributed 550 laptops to over 30 classes in each of 28 schools, and will soon be done with the deployment phase of their program.
In each participating class every student gets their own laptop, but no school has saturation. I am curious as to how it will turn out. Each school seems to have done its own internal training and planning, with a high ratio of participating teachers to students — many teachers are engaged in each school. They all share a country-wide mailing list to discuss their work. They have made a lovely visualization of their national network, linking proudly to the individual sites of each participating group.