Wikimedia Germany will be uploading them to Commons as soon as possible.
Topic on Talk:Berlin Hackathon 2012/Flow
The 'closure' and thanks on sunday evening. File:Berlin Hackathon 2012 - Thanks Closure.ogv
You can expect the videos to get uploaded to Wikimedia Commons by 9 July 2012.
A few more videos are up on Vimeo:
I'm so sorry for the delay here.
The Commons category contains NEARLY all of the recorded videos, and Asheesh Laroia is helping get the last one uploaded.