Over at Wired is a really good rundown on netbooks: what they are, how they came about, and why they are so popular. I was just at a conference and a number of people were showing their netbook off. I expect to see more and more around.
I think this comment at the end of the article is key:
“In the process of creating a laptop to satisfy the needs of poor people, she revealed something about traditional PC users. They didn’t want more out of a laptop—they wanted less.”