I’ve decided to take Ubuntu Lucid Beta 2 for a spin.
For those of you wanting to do the same, see the upgrade instructions posted here:
To upgrade from Ubuntu 9.10 on a desktop system, press Alt+F2 and type in “update-manager -d” (without the quotes) into the command box. Update Manager should open up and tell you: New distribution release ‘10.04’ is available. Click Upgrade and follow the on-screen instructions.
There is a package that will conflict with the upgrade: openoffice.org-filter-binfilter
You will need to go into Synaptic and remove that package for the upgrade to complete successfully.