cyril7:I think your mistaken that netbooks or tablets at school will have full internet access. They will be following strictly education system curriculae and clearly will not be there for kids to access what they want, both for distraction and inappropriate content issues
This is correct, in most instances internet traffic is dragged through a proxy the controls what and where they go.
That's laughable, I know a number of LARGE schools who use opendns as their only means of web filtering. Besides ipad 3g and you've bypassed all of the schools security measures and are on net within 2 seconds.
If schools were serious about this the devices would be coming from the school locked down with no admin rights and no 3g