The X-Box is quote "In addition, the X-Box won't allow upgrades. While X-Box
will be screaming fast when it ships next fall, Microsoft doesn't plan to
update the architecture for four to five years. During that time, technology
on the PC will likely leave the X-Box behind.
Also
"Microsoft is clear that it's a dedicated console system for the living
room. They're focusing on games that appeal to the console gamers tastes,
rather than on complex strategy games or simulation"
Btw, these quotes came from Computer *** World in which they talked to
Microsoft.