Are they mentioning XNA at any point?
We're currently focused on moving the core platform into open source in order to support ASP.NET 5 as well as .NET Native. We haven't made any plans yet what the next app models might be.
Are you going to have public standups and/or monthly meetings (streamed) once the project is completely open?
We probably wouldn't live stream our stand-ups but we do think about making our internal processes and review meetings available.
Does your team have a favorite Linux distro?
My answer would be Mac OSX, which clearly shows you much I know about Linux :)
When can we expect to see the CoreCLR source code on github?
We don't have a specific date, but we shoot for ~Q1 2015.