my friend installed Ubuntu 10.04LTS on his netbook and is absolutely thrilled with it. Starts up in seconds, and works amazingly quickly.
Your netbook will work much better w. Ubuntu than it does with the Window operating system.
It's great until you run into a device driver issue. Then you search ubuntu forum for fixes and have it undone in the next release
I have it installed in a second drive on my laptop and I have spent quite a lot of time looking for fixes every new release is out.