It shows some of the capability's of XNA, though I recommend you see this video too:
http://www.youtube.com/watch?v=13rMPwYfZrY&mode=related&search= This shows more of XNA's capability's and is also coded with torque X, they say it took them three weeks to port this over from native C++ to C# with XNA (TorqueX that is) now that gives a whole new meaning to a rapid development tool

BASIC programmers never die, they GOSUB and don't RETURN.