So I have started a small Wiki on information I know on the xbox source code available :)
It's small and early days so far, but hopefully it will be of help!
If anyone knows any info I should add or anything I have got wrong please contribute!
Known Environment Variables
A bit late to the party as it's been floating around for ages..
The past few months I have been tinkering with the Xbox tree seeing how it works.. and much like my work with the NT 5 tree, Environment Variables will totally change a build.
I'm making this thread to list down what environment...