You can't make this stuff up. I guess this is what happens when you get your booty kicked (pun intended) so hard by the competition for years and years on end--you start making games for the competition. Yeesh.
From the article:
"Microsoft would consider allowing some of its studios to release games on competing consoles. Xbox Studios boss Matt Booty told Game Informer [...] Asked directly if Microsoft would allow its newest studio, Double Fine, to release future titles on platforms that compete with Xbox, Booty replied, 'Yeah, I think we would.'"
The esteemed Mr. Booty goes on in greater detail about the prospect of using MS studios to make games for Sony and Nintendo, etc. Click the link if that captures your curiosity.