Hi Matthew,
Hello, I'm a high school senior from Rhode Island. I'm interested in working on Mail Man for the Google Summer of Code. I was wondering where I would best be able to help out. I had looked on the ideas listhttp://wiki.python.org/moin/SummerOfCode/2011/Mailman and I think I would be able to do the most with completing the Django web u/i.
That sounds great! If you like you can check out some of last year's code on launchpad:
https://launchpad.net/~mailmanweb-django
There's also a python library which makes communicating with Mailman's API pretty easy:
https://launchpad.net/mailman.client
If you're still interested I'd be happy to give you a walk through the code. Just email me or ping me on irc! (#mailman on irc.freenode.net)
Florian