Duly noted. As this wiki is provided by Wikidot as a free service, there's not much I can do in adding features that they just don't have. That having been said, their wiki software is quite powerful in that it allows for a combined wiki/forum, and I really just have to figure out what can and can't be done.
Regarding additional groups, you may notice that the site isn't very polished because I'm really just fleshing it out as we go along. I would love to know what categories would really make sense for our community beyond what I've set up. I really do have my hands full since I am working on hacks for the sound and better wireless function, so sometimes updates to the structure of the site can be slow.
I'd like volunteers to moderate and shape the wiki and forum, actually. The less time I have to spend administering this site, the more time I have to playing with my hacks for the platform.