Integrations I'd like to see between WPMUdev Wiki and BuddyPress:
1. Buddypress Groups: Each group contains their own independent wiki
2. Activity Feed: New Pages and Revisions show up in the BuddyPress Activity Feed
3. User created wiki pages show up as a tab in Profile
4. Revision changes per user are listed in each user's Profile Activity page
5. Members can "Favourite" wiki pages to bookmark them to their profile.