The statement really depends on what you use your computer for. Anyone who uses their computer for 30+ min a day, downloading, photoshoping, burning, etc, will continue to use a stand alone. If you are just some email/gmail/yahoonews browser, there\'s no reason the PS3 or any other simple standalone couldn\'t replace your computer.
There\'s still no way any console will replace the PC in the majority of the market, however.