Student perspective
I'll be buying one (eventually) because:
1) I currently have an iPhone and a 14" HP laptop (which will eventually die, hopefully, so I can replace it since I hate it).
2) I'm a student, and originally thought I'd end up bringing my 14" laptop to school, but it's too big, too bulky, the battery life is too short, and it's a pain to carry around so I end up leaving it at home 99% of the time and just using my iPhone
3) BUT, the iPhone screen is a little too small much of the time. It's okay for light use, but definitely not for reading electronic journal articles, doing web research, taking notes (obviously), or e-textbooks, etc.
4) I also would prefer an iPad to a laptop when surfing the web at home. Lying on the couch or in bed watching movies or surfing gets annoying when you're carrying a hot, battery-feeble laptop. Even a 13" MBP would be a little too big, a little too warm, and slightly less efficient in the battery department. So for home use, the iPad will do handily (for reading, watching movies, surfing the web while I'm in bed or sitting on the couch).
5) When I really want a REAL computer, on the other hand, I want one with a decent screen-size (i.e. for watching DVDs, or when I'm typing long essays and want to sit at a desk with a real screen in front of me). For this, again, a laptop is inadequate.
So, when this HP dies, I've decided to...
- Buy an iPad for mobility (especially at school) and for light home use, and
- Buy an iMac for my desk, so I can actually sit in front of a real computer when I'm writing essays, or want to watch movies on a nice screen, etc.
- And I'll still have my iPhone, for when I want to be truly mobile without lugging anything around.
The only downside here is expense, since I'd end up having to buy an iMac and and iPad. But I only really need the $499 model, since there is Wi-fi at home and at school, and since I don't need much storage if I keep the majority of my files on my iMac most of the time.