I've heard people say that the HP Palmtop is great for taking short notes, but is poorly suited for working on longer documents. I did use a desktop for the final edit of my course, but the first draft of at least 70% of my 160-plus page home study course was completed on the HP Palmtop.
The bottom line is that the HP Palmtop was there when I needed it. It was there at lunch when I finished early and had a few moments to spare. It was there at the dentist's office when I was waiting for my appointment. It was there during Star Trek: The Next Generation intermissions. It was there in my pocket during the day when answers to questions popped into my head.
It was there, ready, willing, and able whenever I needed it.