Recently got a Dell Mini 10, which is nice and convenient since the HD on my Macbook recently died. So, I've been using the Mini 10 for a few weeks now. Here's my comments:
Screen Resolution's a little big for my liking, but not bad overall.
Processor is an Intel Atom, so it's fairly speedy on the small stuff. Video can get choppy at points.
Keyboard is an absolute godsend - Dell says something like 94% of regular size, and I actually believe them - this is the first netbook I've used that I can tolerate typing on for more then 5 minutes.
The laptop itself is small and light though - much easier to carry throughout the day then a fullsized laptop. Battery life good too, not measured, but it lasts me throughout a schoolday.
The trackpad. Oh boy, the trackpad. It's bad. Helpful hints - turn off zoom. Turn off scrolling horizontally. It will make life a bit easier. But no way around it, its a weak point.

Overall - it's a good computer. I'm currently using the Mini 1010, so I'm 2 versions back. If your looking for a great netbook for word processing and web on the go, for fairly cheep - check out the Mini 10.