Dom Sagolla is the author of 140 Characters, a style guide for the short form. He's also the founder of DollarApp, an app studio that produces a variety of 99 cent apps for the iPhone; and a co-founder of iPhoneDevCamp, an international, not-for-profit developer conference for the iPhone community. iPhoneDevCamp 3 was hosted here at Yahoo! in July 2009, which is how YDN met Dom.
Dom describes the early days of Twitter, the epiphany that they could change the world with 140 characters, and the birth of his new book.