the NES the SNES the PS1 each had ~10 year lifespans more or less because they had content continually coming out for them and were actively manufactured
PS2 is on its way to having a 10 year lifespan
That doesn't mean these systems are relevant to the state of technology or cutting-edge games or peoples' primary console for 10 years, just that they were supported by the hardware manufacturer and software publishers for ~10 years give or take a few
Even systems that don't "win" the console generation/cycle end up having long shelf lives - the Genesis and the Neo Geo are proof of that
That said, it's a bit silly to say the system is "future-proofed" - because you can't really "future-proof" a console like you can say a television or a camera - that's because future proofing is about ensuring more content can be played on it in the future - this doesn't really apply for consoles as there is an inevitable technology curve and cycle that fundamentally changes the amount of content you receive every 5 years as new consoles come onto the market
Further and MOST IMPORTANTLY, technology itself doesn't determine whether a console will continue to receive content, it's more about the userbase and support from software publishers, the Xbox was the technologically superior console (by most accounts) last generation, but no software company felt compelled to support it, same is true of the N64, into the future
The only "future proofing" you can do is in terms of graphics technology when the product is released or provide some functional angle that continues to make people use it
One can try to predict the technology curve, and try to make cost-effective technology additions for the console that will make it a graphically appealing product or more functionally relevant product well into the future by understanding what makes it appealing - for example, Sega did this with the Dreamcast through anti-aliasing and internet connectivity.
However, once again, "future-proofing" the Dreamcast had no correlation with its success and shelf life
On the subject of the PS3 - is Blu Ray one such feature? It's possible - when next-gen consoles are released with next-gen disc drives and companies are considering releasing versions of the game for the previous consoles, it's possible that because of Blu Ray they will release a version of the game on PS3 without having to worry about taking too many discs - this might influence some developers from not creating 360 versions
But once again, if there is demand on 360 for the game, there is no reason why they can't continue to support the 360 with slightly paired down versions of the same game or multi-disc games - so long as the userbase craves and is willing to pay for content (!)
Hence, the Blu Ray argument doesn't really do much to make the case for future-proofing PS3 in terms of securing content over and above the 360
That said, I like the PS3, I think it's a fine console just like the 360 - will it last for 10 years in the same way the NES/SNES/PS1 did? Well, it all depends on how the rest of this generation plays out. If Sony can not catch up to MSFT or carve out a solid niche and decides to beat them to release at the start of the next console cycle, then perhaps not
If the PS3 does well and establishes a significant userbase of people and third parties continue to remain excited about the console well into the future, then sure why not?
But even consoles that sold significantly well (N64, Gamecube, Xbox) did not have 10 year lifespans - that in no way made those consoles lack good games or imply they were poor systems, just didn't reach the level of critical mass for third party software publishers and others to continue supporting the system
So to end this loooooong post - stop bickering and arguing - go play your games while the systems are in their prime
