For a while we have been recording these for colleagues on vacation or otherwise occupied during the talk to watch it later. Several of them are available on codecentric's YouTube channel publicly. As of a few moments ago, so is my "Man in the Middle? – No, thank you!" talk on the possibility of – and countermeasures against – man in the middle attacks against SSL connections.
For your convenience, here is the video:
The slides can be found on Slideshare, the iOS sample application is on my GitHub page.
Feedback is welcome and appreciated.