I just presented at the WTIA. It took me 7 minutes to present and the Q&A lasted 10 minutes.
I begun by getting a laugh out of the crowd (don't remember exactly what I said), but it certainly helped. I tend to have these spontaneous moments that I don't prepare for and I don't know where it comes from, but the audience usually enjoys. That's one of the reasons I hate to be over-prepared to give a talk. It kills spontaneity.
My goal was to tell the story of what Sampa used to be, what Sampa is now and where we want to go. I think the mission was accomplished.
The Q&A from the panel was much easier than I expected.
The other good thing was the fact there was only 50 people on the room, so the worst case scenario I've made a fool of myself to just 50 people. :)