Even though C++/CLI and VB.NET are not supported in the initial
release, one could theoretically write a game in ilasm assembly
language for the xbox 360 right
At least the ilasm instructions needed to support C# would have to be a
part of the 360's runtime. So if a team wanted to program a game
for the xbox in Java lets say, they would just have to build a Java
compiler that targets a subset of the ilasm instructions used for C#

ilasm support
gauls