I've been thinking about buying a tablet (or otherwise pen-based fully functional) computer for years now and I'm not quite sure what's holding me back. Let's suppose that having to run Windows XP Tablet is not a problem because there's no real other choice right now. (For me, it's a good enough OS for mucking around with Office documents, checking email, and playing games; I reach for my PowerBook when I want to do some serious work!) What other reasons might you have for not buying any current tablet computer? I'm asking here because first of all I would absolutely love it if Apple were to sell a tablet computer, and second because I don't need Windows fanboys telling me that their favourite OS will magically solve all of my usability problems. Any takers?