It's always a pleasure to converse with my old friend and colleague, David Chappell (www.davidchappell.com), this time in London during his world tour where he has been talking about cloud computing, Windows Azure and its impact on developers. In this interview, I get the chance to discuss these themes – what it means for software companies and enterprises, what sorts of project people are using cloud computing for, how will people measure success, and how will people in the industry will be impacted over the next few years.