I agree. I presented to a Board of Trustees meeting here in NZ last night about this. The BOT wanted to buy IWBs for each classroom - high-end ones at up to $7000 NZ a piece. I showed them some of the research and white papers and then showed them what they could buy as an alternative - being a lot of netbooks giving individual kids a load more power - be interesting to see what they do.
One BOT member asked me if schools are now obsolete. My response was that schools are not obsolete but their walls are.