I have run Ubuntu on my X1000 before but never got the wireless to work.
I've tried Ubuntu, Kubuntu and Xubuntu - I still don't understand the whole updating/installing programs. Wireless and everything worked OK though - out of the box, including resolution and sound. This mega-hub for program management idea seems good, but never works in a way that I get. Windows I get, Linux (and OSX) are a massive mystery to me.
Sorry for those who tried getting WM7 to work with my step-by-step but couldn't. I guess you have a newer version than the NX7000 I have - probably a need to find other drivers. Or something. For the record, the SD card reader remains unreadable. I never used it back in the day, but now it's standard issue and would be quite useful! Just waiting for that perfect netbook and I'm upgrading.