Good find. but that quote happened in 06 before microsofts success put a kink into the system, they were forced to adapt. but your point is taken sony initial plan was to release the ps4 much later, it was one of the arguements to justify their huge price point. Microsoft changed the rules to them game. 

Um no. The PS3 10 year lifespan means the PS3 will be supported for 10 years. That's even what Kaz said. It has nothing to do with when the next console launches.

Look at PS1 and PS2 as proof.

The market is completly  different than the PS1 and PS2 days  IOS and android are in the mix now. How many devs will still be making games for PS3.? Even the price point of the  PS4 changes things. (took this from qoute i made to ethonmaz, added ps1). The market has changed since then.

 We look at our products having a 10-year life cycle, which we've proven with the PlayStation. Therefore, the PlayStation 3 is going to be a console that's going to be with you again for 10 years

Uh... I wasn't aware the Ps2 was on the market for 10 years before the Ps3 was launched. The quote obviously supports the fact they plan to follow same stragety as Ps2. They started R&D on Ps4 immediatly after Ps3 launched

Idk, did you read the quote, when he says  "We're not going to ask the consumers to suddenly buy another PlayStation console in five years time, and basically have their investment go by the wayside. So for all those reasons, I think at $599 we're offering a very good value to the consumers." kinda alludes that the ps4 was going to be released near the end of that lifecyle, idk maybe the eight year or so, looking at the ps2 which had 13 years or so, you would thing the high tech ps3 with bluray, cell and all the bells and whistles would get support that at least match that.

Kaz was directly comparing the Ps3 with previous playstation products and their stragety with those products...

It's different and yet it's the longest generation in history.

Also you're confused in what the 10 year cycle means. The last PS1 game to be released was in 2004, perfectly 10 years after the Japanese launch. The last PS2 game came out only six months ago, 12 years after the launch. That is what the 10 year cycle means. Sony even in your link it states the 10 year cycle was proven with the PS1 yet the PS2 came out 6 years later so why would it be different with the PS3?

what do you mean? i think he was trying to assure customers not to worry about something new and better coming so soon after they purchased the ps3, my  whole point is that after reading the quote, for me at least, it appears that in 06 sony plans where to release the ps4 much later, as i said early the adapted to the changing market, as a good company should, and decided to released this year, around the 7 year mark, i think it was a direct response to microsoft and rumors of their launch plans

They make money off every Blu-Ray disk sold because of PS3 and Microsoft will end up paying BD royalties. Which could mean money in Sony's pocket in the end

No, he was drawing a parrallel to the stragety they are taking with the Ps3 to the strageties they took with the Ps1 and Ps2. Both of which lasted longer than 10 years AND their predeccesor launched before 10 years.