I've just joined the Ubuntu Unity developers Bazaar repository and am eager to get started on hacking the code! Do I need to run Natty to be able to do this? Or can I simply use Maverick? I'd prefer to be able to work on Maverick because it is stable.
If you're developing a Unity Place then you can do that one either 10.10 or 11.04.
However for most Unity development you need to be on 11.04 as it's changed significantly from 10.10. You can either do that with virtualization or creating a separate USB stick.
We have set aside a bunch of "bitesize" bugs for people to get started hacking on Unity, and we'll probably have some IRC tutorial sessions too: