Twitter employees asked really good questions, and in more than one case challenged the presentation. This is what I expect from really smart people, and I was also very impressed by the turnout. All in all, I really enjoyed giving the talk and getting difficult questions. One of the tough ones was why I wasn't using twitter more. Well, I'm going to try to use it more, and you can follow me @choonpiaw.
After the talk, I met with one of the co-founders of Vayable, who had requested a meeting with me. It's one of the more interesting travel startups I've heard of recently, and it turned out that we knew many folks in common. There seems to be no shortage of interesting ideas, though as usual, execution is everything!
For those who are interested, I'll be giving a similar talk at Dropbox next week.