1. The Google stuff works. I would have loved for that kind of organization and management in my elementary school classes. Google docs is also great and means I don't have to beg my not so wealthy parents for a Microsoft word license (or learn in the 4th grade how to pirate it).
2. Let's not kid ourselves, everyone is going to make a Google account anyway. As long as the school accounts aren't used in collecting ad data (which they're not) this is a non issue.