Looks like a message board to me. A lot of these types of technologies seems like variations on what's been accomplished with message boards and bbs's.
> One day, an entrepreneur will come up with a business collaboration tool that isn't based off a message board or a wiki.
I don't think that's really possible, as you're likely defining "message board" as "individual contributors make individual contributions over time" and "wiki" as "individual contributors co-author centralized contributions." There aren't really any other approaches to collaboration, online or off.
