I fail to see how France had anything to do with the Tour of Cali. The reasons AEG cited, as part of the email dump on teamradioshack.com, was the overall team was inexperienced (though they seemed to be quite a solid line-up).
It is pretty easy to tell from his Q&A on ESPN and from the progression in the released emails that this was a long time coming. He clearly feels resentment as being singled out and effectively blackballed. It really seems like a guy who "tried" to do right by those who "enabled" him, and when they ultimately turned their back on him, betraying his loyalty to them and their secrets, it cracked him. So be it.
I have to believe that given Landis' previous style of going full bore with whatever he has undertaken, assisting whatever investigation(s) that might exist, he is savoring every minute of it.