That's an Ubuntu Desktop Team call for contributors! The team has some rocking contributors already and the feisty desktop is quite good, we are overworked for some time though and it's not easy to keep up with the work to do. The working ambiance is usually quite nice, so if you want to give it a try just join on IRC or the list ;)
The things you can do there:
FOAF updates: Trust rankings are now exported, making the data available to other users and websites. An external FOAF URI has been added, allowing users to link to an additional FOAF file.
Keep up with the latest Advogato features by reading the Advogato status blog.
If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!