The Virtual Earth ASP.NET Control has been released as part of the Windows Live Tools for Microsoft Visual Studio Community Technical Preview.  Now you can use the Virtual Earth Map Control API's without writing any JavaScript.  You can drag and drop the control in Visual Studio and set properties on it.  You can also set up ASP.NET server-side events.  This should greatly simplify Virtual Earth development for ASP.NET developers!  Check out Chris Pendleton's Virtual Earth Blog for more details on how to use the control.  Reference documentation at the Windows Live Tools site is coming soon!