Using the I-pad may sound complicated, but once held, is easy to get the hang of. The knowledge needed for using an I-pad is basically the knowledge to know how to operate simple technology devices. There is no actual skill required, except learning how to browse on the I-pad and find what you are looking for, which is quite easy to learn.
The great thing about the I-pad is that it is their to support the many different ways students learn. If you are more of a visual learner, you could look at a video to understand, or if you are the person that learns better with audio, you could listen to some clips on the I-pad that relates to what you are currently learning. The I-pad is not limited to certain literacies, which is a good thing when you want different ways to learn.