4.7 Billion? Haven't they sold less than 100 million units? And since billion is 1,000x a million, they've lost $500 or more per system? Still? Sheesh. That number doesn't even really make sense to me. With only the number and none of the underlying data, it's hard to say where it comes from or what it represents. It seems it couldn't just be -hardware- losses... could it?