Im unaware that xbox or the 360 is linux-based, but in any event, at its core, i believe windows was essentially based on linux. it just has a better, and more user-friendly interface and microsoft's suport behind it, something linux doesnt have.
On another note tho, has anyone gotten their hands on the 360 ?
i bid on that 15,000$ one on ebay when it was around 3k just as a joke to see, i was very pleased to see i was outbid lol (when PS3 comes out, i plan to buy a few and sell em on e-bay as well, what a potential profit margin hehehe).
ive played the 360 tho, looks awesome, but im a little under impressed. a sweet interface, and great potential, but no games thus far that even compete with their PC counterparts, even with the xbox's 3 3G processors.
we'll see what the PS3 has to offer x-mas 2006.