While at NDC-London, Carl and Richard talk to Jon Skeet about his experience using C# everywhere - including mobile development! The conversation starts out talking about Jon's top topic of the past couple of years, Async and Await. Jon then digs into developing noda-time, a .NET implementation of Joda Time. This leads to a great conversation about Xamarin's tools for building iOS and Android apps and how C# can live everywhere. Jon talks through the fun parts and the hard parts of building mobile apps and his plans for cool new cross platform development. It's a different side of Jon Skeet!