"All that glitters is not gold" may be applied to Interactive Whiteboards (IWB).
Today, I have read an article by Gavin Dudeney which has arisen a debate on IWB. Gavin is not very enthusiastic about this tool ;however, below his post (click HERE) there are some other experts' opinions - Graham Stanley's, among others - who are not so pessimistic and mention the point that "Training is indeed the key to using the IWB".
The big danger using IWB is using this kind of tool only to show Youtube clips (a bit like buying a Jaguar just to take a trip to the corner shop).
Personally , I completely agree with Graham. If schools want to incorporate new technology to language classes, teacher training is essential. Oh, but the teacher trainning should be given by an experienced teacher, not the IWB maker.