I've spoken at the G20, TEDx, Ignite, Pecha Kucha, SXSW and Brasil 3.0 on everything from startups to how children learn to the challenges of software licensing. Here are some examples of presentations I've given.
And yes - I am very attached to that hat. :)
I was asked to present at TEDx, so I invited two amazing brothers to work with me and create their own interactive projection games in order to explore how this kind of project can be used to help kids with Aspergers express themselves and communicate their creative ideas.
TEDx Talk - How Can We Design a Better Way To Learn