The truth is that the iPad is not destined to change the face of education. Nor is it just an expensive toy bought only by Apple fanboys, as some anti-Apple bloggers hyperbolize. It's a tool, like any other, and in the classroom it must always be thought of as being in the service of pedagogy. The pedagogical foundations must be solid, because the tool will achieve no heights the underlying pedagogy will not support

This puts me in mind of a theme I've been developing in various conversations and presentations over the last few months: that technology, pedagogy and curriculum each have influence on the other. If you're not able to modify your teaching methods or curriculum to take account of new technology, that's a barrier to getting the maximum utilisation out of these devices.