Interactive whiteboards clearly work better for some subjects than others.
Too often, though, they are simply used as screens to project PowerPoint or Word files. Just because you can touch the screen or highlight with a pen doesn't make the content any more interesting, but many lecturers have fallen into this trap.
I think they are best used with multiple applications lined up on the task bar, for example, moving between a website and PowerPoint in a process that involves the students moving on the content of the lesson through question and answer.
The "wow" factor, as with digital watches and anything designed by Sir Clive Sinclair, has rapidly passed. As one pupil said to me recently: 'It's just a whiteboard sir," before proceeding to zap his coursework from his mobile into mine by using something called Bluetooth. The question is, how the hell do I retrieve it?