I have Ubuntu 8.10 RC on a desktop virtual installation and the netbook version running on a SD card for my EeePC 901. I've got to say it's pretty cool.

The installation is quite simple, no complicated settings or choices and everything is explained quite well. For the VirtualBox installation, I did an upgrade from 8.04 to 8.10 RC. This is very simple, but it will take a very long time; it took my virtual installation at work nearly 6 hours to complete (however, I could continue to use Ubuntu while it was doing this).