I've seen the point made in this thread about if the iPads are good for education why doesn't the school buy them. Well 1:1 teacher to student lessons would be good for education but there is no way the school can afford it. School budgets being what they are and given the growing prevalence of smartphones and tablets amongst students I think we are doing a disservice to students if we don't try and integrate these technologies into their education.
As it stands we have most schools with the traditional desktops and laptops setup; as soon as the students leave school the majority of their internet consumption will likely take place on smartphones and/or tablets and they are often more skilled in their usage than school staff. If we can harness these skills and leverage them in an educational setting it could lead to outstanding lessons with the right teacher. I think iPads are the popular choice but they have a lot going for them. They are locked down and the quality process for apps is pretty good, they have large scale acceptance amongst students already (being a desired device means they are more likely to take care of them). I'm not saying you couldn't do a similar job with other tablets but Apple certainly have some sort of head-start.