Let's follow this for a minute ...
Let's say that the games for the PS3 are all rendered, by default in 1080P. This includes appropriate texturing, lighting, etc.
Now, since almost nil displays actually accept 1080P in the consumer electronics world (which is completely different from the computer electronics world) the market that will immediately benefit from 1080P is so small as to make one (me) wonder why bother at this pint in time
vs. focusing on the display capabilities for the bulk of existing HD-compatible displays, and those expected during the majority of the console's prime lifetime.
I'm just saying that I am having a hard time seeing this be even of minute significance in display numbers (I'm guessing <<1% of HD-compatible displays). Being that the overwhelming bulk of current and a healthy majority
of near term products delivered and bought by the masses will continue to be 720P and 1080i, what importance does Sony think the common buyer will place on 1080P native in something other than spec-hype?
Keep in mind I am given them a big kudos for this, but the numbers of individuals that can and will take advantage of this is so small as to place the entire aspect in a skewed light unless Sony can expect 1080P display sales to run in the millions during the life-cycle of the PS3.
And since the overwhelming percentage of consumer electronic displays currently owned, produced and ready for purchase, and meeting some sort of HD-criterial is something other than 1080P it becomes almost a moot point 'except' to that minute minority that can and will take benefite (a la Qualia owners, etc.).
And yes, I am considering the PS3 for purchase this Spring, and that personal focus of mine is for high-definition movie playback. Unfortunately, since I am already at 92" for movies and PC gameing (and 65" for console gaming) I doubt that I will find myself able to afford a 1080P display of size to even consider the specification of any valued interest as an output.
Of course, a Poll asking how many people can and will afford a 1080P display come Spring would be of great interest (I'm certainly curious), but that will undoubtedly get labelled as a flame-post, too, and closed accordingly--so you post that poll, please. :)
The real benefit for 1080P rendering (both for games and movies) should be looked upon as an advantage to begin with 1080P and go down to 720P or 1080i for the millions of displays already out there in consumer hands, and the still millions more that will be bought during the PS3's life-cycle.