Apart from the content (since I'm always keen on learning new marketing strategies, particularly from a socially conscious perspective), I'm very intrigued in the structure that this is potentially a FREE event!!
Much like the Radiohead and NIN "free" music experiments, the facilitator is asking people to pay what they feel the 3-day course is worth after you have completed.
I wonder if this model could be used for other products services? At this point, the reason I think this works for music/knowledge is that for all intents and purposes, the product that you're buying doesn't exist in the tangible, traditional sense. It's not like we're buying a burger, that we would consume, and thereafter, it would cease to exist. No, with music you have the liberty of stopping, rewinding, fastforwarding, or even remixing. Same thing with knowledge - you can apply the lessons learned in the manner that you feel appropriate.
Which brings me to a question: if you had to pay to use TakingITGlobal after a week/month of usage, what would you pay?