PS3 Dev-Kit Running on XP?

The horror! Microsoft's Major Nelson took this candid shot of the PS3 dev-kit running on XP. Somewhere, Tux is screaming. And screaming.

Apparently, the dev-kit was supposed to be Linux-only and was also supposed to come with a pet dolphin and make you see beautiful sunrises. However, this frightening development truly changes the entire game. After all, when was the last time Sony used a proprietary, closed-source software or hardware platform?

PS3 Running XP? Ponders Major Nelson [Kotaku]