What Happened to Bit Bit?

I like Chihuahuas. They are always very cute. I was buddy- buddy with Matt's brother's Chihuahua Cujo over the weekend, and that was fun. Despite the paranoia of squishing him in some way.

Then of course there's Paris Hilton, who still carries fiesty Tinkerbell around.

As I'm listening to Britney Spears new album Circus, I'm wondering what happened to Bit Bit? Did he die in all the drama? Did K- Fed eat him?