When the first generation iPad arrived on the scene, I could not imagine why it might be useful, yet I was attracted to it. No USB port? How could I create with it? Why not just use my laptop? I suppose it could still be argued that my laptop ought to be good enough, but after many long conversations with my brother about how useful he found his iPad and after my passionate affair with Dropbox began, I started to save my pennies and draw up a list of why the iPad might be useful. Ultimately, the biggest advantage of the iPad for me was the ability to critique pdfs that had been saved to my Dropbox and to have my comments stick (I use iAnnotate for that).