I'm primarily a PS guy, but that 6>4 hidden msg is pretty funny. A light jab at the competition ha.
The first theory on the release date seems very legit. The price theory is definitely interesting, but I'm not fully sold on its validity. And I would be pretty surprised if Scorpio released for <$450, unless they'll be taking a loss. I've heard many people, but specifically a few in the business of computer components/hardware, state that $400 is highly unlikely and rather $500 will be the likely price point, based on the components. But, at the same time, I think $500 will make things very difficult for Scorpio to sell well, so MS would be much wiser to release Scorpio for as close to $400 as possible.