I submitted a couple talks for [PHP Community Conference](http://phpcon.org/) last month, of which one was accepted.
Unfortunately, it was the one I hadn’t prepared at all. The title was “living without your linemen” and was supposed to be about cloud services. A bit later, they asked if I could make it the closing keynote for the conference. This allowed me to write it from scratch and actually finish the talk (which I did about 30 minutes before I had to present it).
I’m told that they’ll eventually have a video archive of the talk at [OpenEvent.tv](http://openevent.tv/), but in the meantime, I audio-recorded it and synced it to the slides on slideshare. (Apologies for the sound quality being poor, I recorded it from my Mac Book Air).