@ Mark
Who says there won't be a PS4? Sony? Only a muppet would believe anything that $ony tells you. Here's a reminder of some of the whoppers they told about the PS3:
1. "The PS3 is to be launched simultaneously in the three major gaming territories - North America, Asia and Europe."
http://www.ps3focus.com/archives/196
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2. "Backwards compatibility is a core value of Playstation now."
http://www.gamepro.com/news.cfm?article_id=55108
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3. "Having multiple SKUs just confuses the customer."
http://www.gamesindustry.biz/content_page.php?aid=11209
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4. "Rumble is last gen, and can't work with the tilting function."
http://www.1up.com/do/newsStory?cId=3157501
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5. "We're not going to remove backwards compatibility."
http://www.eurogamer.net/article.php?article_id=74124
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6. "We're not going to cut the price for two years."
http://www.mcvuk.com/news/25409/SCEA-PS3-p...p-for-two-years
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7. "We removed backwards compatibility to cut the price."
http://www.eurogamer.net/article.php?article_id=85648
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8. "We removed backwards compatibility to make people buy PS3 games, NOT to lower the price."
http://kotaku.com/gaming/spin/jack-tretton...ures-312628.php
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9. "We removed backwards compatibility as a result of consumer feedback."
http://www.eurogamer.net/article.php?article_id=84824
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10. "We removed backwards compatibility to spend the money on developing new games."
http://www.eurogamer.net/article.php?article_id=84831
(ALL of these are lies, since they obviously did it to boost sales of the 60GB model prior to introducing the 80GB one next year.)
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11. "Home will launch in October 2007."
http://www.eurogamer.net/article.php?article_id=83690
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12. "Europe is the most important continent for the PS3."
http://www.eurogamer.net/article.php?article_id=74494
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(Thanks to Rev. Stuart Campbell at WoS)