EastBay.NET (Aug 22): Async and C# everywhere. Craig Dunn will demonstrate why Xamarin is the best language for mobile development.
Authenticating Enterprise Users into Mobile Apps webinar (Aug 27): demo of the new mobile single sign-on SDK from Symplified now in the Xamarin Component Store.
St. Louis ALT.NET meetup (Aug 28): David Ortinau will discuss enterprise mobile development with Xamarin.
Atlanta Code Camp (Aug 24): Wally McClure and Peter Mourfield are giving presentations about cross-platform development with Xamarin.
Parse Developer Day (Sept 5): Xamarin’s Craig Dunn will be presenting "Building Mobile Apps with Parse: Tips and Tricks".