@ Golvellius
Regarding Blu-Ray:
"Microsoft VP Peter Moore was quoted at CES saying that Xbox 360 has the flexibility to adapt to consumers’ needs, allowing Microsoft to add features as consumers demand them."
There is consumer demand for a Blu-Ray add-on, or better yet considering it's also Microsoft's technology being used a Blu-Ray drive offering full HD DVD backwards compatibility (currently planned HD DVD compatible Blu-Ray drives won't support additional HD DVD features other than movie playback, they use the same codecs).
IMO the Blu-Ray drive will be mainly beneficial to PS3 games. Nobody is pressuring people to buy Blu-Ray movies, that's an option (I'm very happy with) as the PS3 does feature movie playback support.
Not really, most companies which were part of the DVD consortium are part of the Blu-Ray consortium.