using /ref: switch in Chrome you should be able to link to the XBox versions of the Xna.* Assemblies which are installed when XNA Game Studio Express is installed. So I think it should theoretically be possible to use Chrome to create an XB360 exe.

There are some tutorial videos that show how to load 3D objects etc over @ http://blogs.msdn.com/xna/archive/20...available.aspx
but you should be able to keep up to date by checking
http://blogs.msdn.com/xna/
regularly