We had a great interview with Twitter COO Dick Costolo at the Real-Time CrunchUp on Friday. Costolo always gives the audience a few good nuggets of news and handles the more difficult questions with ease. He's a pro. After the conference I reviewed some of the backstage footage we shot of Costolo before he went on stage for the formal interview. We ask lots of great questions - about Twitter's revenue, business model, details of the search deals, chances of getting bought next year, and the lovely bathrooms they have at the office. He manages to entertain the entire TechCrunch editorial staff while revealing absolutely nothing. We even slip in a question about Feedburner (Costolo cofounded the company and sold it to Google in 2007) at the end, but sadly we ran out of tape before he answered. One thing Costolo does clear up - even though I've known him for five years now, I apparently have been mispronouncing his name the whole time. The video is below: