Although I enjoyed most of the talks I saw at ETech, I started having the best luck when I stopped trying to go to ones that seemed useful.
The Commodore’s bartender Scotto Moore performed his “digital fairy tale” called Intangible Method. It’s short, watch it.
Also as part of the Ignite series, Matt Web’s Science Fictional Tour of the Solar System, which has absolutely nothing to do with anything:
Two good talks that I don’t have video for:
Las Vegas: Behind the Scenes. What Sensors? What Privacy? What Anonymity? The Whole Story
Jeff Jonas
Phillip Torrone (Maker Media), Limor Fried (Adafruit Industries)
Presentation [PDF]