I like it, but is this a duplication of efforts from that Facebook page I saw earlier? We probably ought to standardize on one place. I personally like Wikis for this type of business.
You're right - there is some duplication, but I think the wiki and fb event page can compliment each-other.
It's hard to contact the other members on the FB event page, unless you're friends w/ them. Hopefully this will allow everyone to easily share contact info.