I have just seen on Steam that today they have released a Demo of Supreme Commander 2!
You can find it though Steam or a direct link here.
I haven’t seen any demo for the 360, but if I’m not wrong it shouldn’t be far away
To update yourself, go to Xbox.com and find Supreme Commander 2, you will see that “Game Demo” will be highlighted.

I think it’s only Single Player, though I haven’t played it yet. Will update later!

This post was written by Dragzonox