That is it. How do we get more brains working on a problem and thinking about how to move forward. Whether you are in a school setting working on a team project or in a company setting trying to develop a new product, the key is getting all the minds aligned and working on the goal.
If there are tools that help us do that better, like wikis and other Enterprise 2.0 ideas, then so much the better. Ultimately, those are going to be common, foundational ideas that all companies and groups will use. Everybody is not there yet, but everybody will be there one day. These tools and ideas get teams moving faster and better on the problems at hand. Less friction and overhead than alternatives and old ways.
We do goal alignment at work starting with the CEO and his staff with everyone aligning goals from there. That is a nice start, but it doesn't quite get there. Team collaboration is closer to what we need to do better.