Yes: 

"Nintendo of Japan continued to repair Famicom systems until October 31, 2007, attributing the decision to discontinue support to an increasing shortage of the necessary parts." ~ Wikipedia NES

it was always BS. It will end up like the PS2. It has been out for almost 10 years now but a new console has comeout anyways. Same concept with the PS4

PS2 will be on the shelves for ten years, just like PS1 was.

What they mean is that the consoles is on the shelves selling for ten years EVEN THOUGH they bring out a newer one first.

It's always been true.

I believe they can support PS3 until very well 2015. They're still supporting PS2 aren't they? Both PS1 and PS2 were sweeping the floor with the competition when their successors were launched, roughly 5 years after release. It won't be surprising when the PS4 finds its way into stores 3-4 years from now. Sure the PS3 will not have probably recouped the loss on investment Sony has made with it by that time, and it will certainly not have half the marketshare they had during the PS1/PS2 era, but even that is little likely to mean they won't continue to fully support the PS3 (and third-party developers too) after that.

It's said and thought by many today that Next-generation "consoles" won't be as "hardcore" oriented or the tech powerhouses that would mean the continuation of the old "take big loss on hardware-even debuting with steep price-tag-model" So I'd say it's safe to believe "Next-Generation" hardware (which should specialize in things like community and interactivity (ie. waggle, touch screen) among other things (no clue yet), will coexist with current generation consoles. Who knows, in 4 years we could still be playing Xbox 720's games on X360, and PS4 games on PS3 (or VERY good ports of the next-gen ones), but the attractiveness and motivation to jump to the new platform would be all about convinience, commodity and added value, so much provided by the hardware, its design and its OS rather than what it can offer developers in terms of chips and bits.

I didn't really the idea of a 10 years plan. It's too difficult to support three consoles at the same time. I hope that sony will kill its ps3 before launching the PS4, I don't want a PS2-PS3 problem once again.

I had written off the 10 year plan as marketing spin for awhile. Even if Sony makes it anything other than specialty stores would not keep them on the shelves. It will probably last until the year after release of the PS4 -- living in a small corner of the PS4 case until there are enough PS4 games out to drive it out of most stores. Then it will quietly be discontinued or if Sony insists it will pile up in warehouses.

Nope, at sub-$200 (eventually, later half of the cycle), with its game library and movie download service and hard drive and media center capability and Blu-Ray player and free worldwide videoconferencing, it will continue to sell.

 Just like the Gamecube  and Xbox right?  By that point in its life the power user types, who will care about those features, will be done buying and your going to be getting the most casual of the casual buyers, Wii buyers, who  would not even know that you could get it at Gamestop for $50 used.  If there is a miracle and it somehow sells 100 million I will change my mind but right now it is not the PS1 or PS2 and will not follow them.

I think at $149 a lot more than power users will care about those features.

ps4 ,.in 5 years,..?