Hello,
As I previously announced, we now have every video from Wikimania 2012 (except for "WikiCulture and Community II", "Featured Session: Legal Issues", and the closing plenary, which will be online as soon as some technical issues are sorted) on YouTube. Here are our playlists:
Once I receive the master hard drive with all the videos (including high definition!) from the producers, they will be sent off to the Wikimedia Foundation for mass uploading to Wikimedia Commons.
Enjoy!
James Hare
Coordinator, Wikimania 2012