Here is a long overdue article.
I’ve just read an article that Neil Winton found and posted on Twitter. Basically the article comments on IWBs in a fairly negative way. I don’t think I am in full agreement, I definitely think that there is a place for them BUT I do agree that they are not cost effective (in terms of improving learning outcomes) in many cases. The argument that they actually re-enforce traditional styles of teaching also does need to be considered.
There is a lot to be said on this topic and there is no one easy answer, I suspect that many people have promoted IWBs without being fully aware of all of the implications and much money has been wasted.
Interactive teaching is something totally different and I suspect that the two often get muddled.