I've had one for about two months now and really like it. I use it for taking notes at meetings, web-browsing when out and about (Wetherspoons pubs have free wi-fi and don't mind you having a coffee for an hour!), updating my website when away from home and sorting out email.
It is great as long as you accept it for what it is - a cheap, very portable laptop with some drawbacks: most notably the small screen and keyboard, both of which take time to get used to.
I use it with the default Linux installation although have been tempted to install Win2k so that I can use it to sync with Outlook.
click here for a good user forum.
If you have any specific questions, feel free to ask.