Are all ICTs okay for schools?

This evening, I read a post by my fellow student on their blog Whiteboard Whispers, which talked about mobile phones in the classroom. 

It got me thinking about whether there are some ICTs that should be kept out of the classroom. For example, mobile phones have long been banned from many classrooms, but recently some teachers have begun using them as educational tools.

Conversely, iPads have been heralded as great educational tools, but they are all too easy to be misused and used as activities for free time, rather than as learning tools.

In my opinion, all ICTs have the potential to be an excellent teaching tool, provided they are used in the correct manner, and all ICTs have to potential to be simple diversions or ‘fun’ activities for free time in the classroom.