For those of you interested, Bruno Giussani has a running commentary on TED, including Flickr photos of the event. He has a number of entries already, but I particularly enjoyed Small Miracles, which has a life sciences focus, and "History's arrow" for its macro-themes.
Read Lunch over IP, his blog, for more. Thanks for sharing, Mr. Giussani.
[update:] Ethan Zuckerman at my heart's in accra is also attending and blogging the event.