Do not agure with him. I agree with you. PS2 is a console. PS3 is no longer a console. it is a PC. Not to mention that ps3 has a better grahpic card( almost id to Geforce 7800 but faster), increase size and speed twice for memory sticks which is more powerful and fastest than ps2.
I'm gonna have to think that "increased specs" would be more about having the system multitask - maybe in the future you can play a game, record a TV show to the HD, and download a game demo all at the same time. The core 3.2GHz and 512MB of memory would always be dedicated to playing a game (and running whatever software goes on in the background).
Increasing specs later in a lifecycle for a boost in game performance wouldn't work, because every developer would still be making games for the configuration that the system launched with. If they've got one area to maneuver it is with the hard drive, they've already got two different sizes, and as long as they are leaving enough for caching and game saves (6 GB would cover that easy) than they can release smaller or larger versions depending on whether sombebody just wants to store their game content or if they want to download movies/demos/etc.
Sony hasn't even let developers use the full 333MHz of PSP yet, so going with multiple specs on PS3 (other than the HD and video out) would be a pretty strange turn on their part.