I've spent around 5 years working in education and more recently two years as part of the building schools for the future programme.
I have installed literally hundreds of IWB's, so when PRW got listed, I really reviewed whether to invest.
I decided not to for the following reasons:
1) most educational practitioners find it very difficult to build IWB use into their pedagogy and thus view the £3k price tag as a "complete waste of money".
2) I have never come across a school which has actively set about a replacement programme for their IWB's - unlike PC's.
I honestly don't see a future for IWB's...