I've been intrigued with Unconferences ever since I attended Wikimania at Harvard during the Summer of 2006. Although Wikimania was not strictly an unconference, I really appreciated the free flow of ideas, and the fact that much of the conference was unstructured. I've found that I learn much more from fellow participants, than formal presentations.
Recently I've been introduced to the concept of BarCamps. Quite frankly I'm intrigued with the idea of hosting a "Web 2.0 and Corporate Learning BarCamp in 2008". Here is a link from a BarCamp hosted in my home state of Minnesota earlier this year. It will help you get the idea.
Anyone else interested ? Post a comment, or send me an email: firstname.lastname@example.org.
Update posted on January 7, 2008: Feedback to this idea has been positive. I've contacted some folks I know at both Stanford and Harvard with the goal of seeing if either of those organizations might be willing to provide space for such an event. As much as hosting a BarCamp in Minnesota might be easier for me, it's obvious that Boston or Silicon Valley would allow for better participation on the part of some key individuals.