I've upgraded to Ubuntu 10.10. After a typical update (pretty painful, losing network, getting it back again, and then having to do lots of 'sudo apt-get dist-update/upgrade/update' cycles, I finally got it running.
The only surprise so far is that gnome-do has been separated from the docky look. Now, you have to 'sudo apt-get install docky' and run that as a separate application. See this blog post for some further details.
Time to see what else is broken.