Slides available here: http://merewood.org/estimation-or-how-to-dig-your-own-grave/
Thanks for feedback, all helps me improve!
P.S. Rating my own talk seems a bit arrogant, but that should disappear once I'm marked as the owner :)
A very insighful talk, very close to what we are doing at our company
A very entertaining presentation about a potentially dull subject. Interesting and useful.
Excellent keynote, great speaker
Good overview of what Open Street Map is and what you can do with the data.