All of these questions and more are apparently answered in a recent article by Jake Metcalf from 8Bit Joystick (no relation), who interviewed a nameless "inside source" at Microsoft who was involved in the testing and manufacturing of the console. According to the John Doe, the system was rushed to beat Sony to the market, had purposefully cheap heat sinks (which causes most of the RROD problems), and, most disturbingly, there's a chance that Microsoft may run out of systems with which to replace those that suffer hardware failures.
Jake has proven that he's well connected in the past, calling the Bungie-Microsoft split a week before it was announced thanks to another anonymous Microsoft tipster -- but some of the claims made in this particular article are inflammatory enough to merit higher-than-usual levels of skepticism.
