Having watched the conference, i now have some questions...
Sony said many things about PS3 and what it will do apparently, and the little demon in my head is starting to work overtime...
Sony said we'll be able to play games but at the same time surf the net and do other stuff. Does that mean that there will be some kind of OS overhead, much like in... *cringe*... PCs? Does that mean that performance in games will suffer? A game that uses the hardware at full power (or as close to "full" as the devs can) won't have power to dedicate to surf the net or watch movies and other stuff.
Taking the demonstration of the video chat windows in one screen while a game was being played in another - is that something we can expect as a standard OS feature, independent of the game?
The Cell can run multiple operating systems, so yes, you could do that. Now, we don't have the application up and running yet, and the resource management isn't quite final - but the purpose of that presentation was to show what is possible. Exactly how that gets unlocked is still being worked on.
Also, they said that the double HD output will be used at any one time. Does that mean that when using the double wide video, performance will suffer? Or does that mean that the performance will be capped from the beginning, so that when one uses double output, performance will be the same?
What i mean is, a "double wide" GT5 will use double the fillrate than a single-output GT5, so either the double runs slower, or GT5 runs with an overhead from the beginning - preventing it to use as much power as you possibly can from PS3 - so that when going double, performance will be the same?
The terrain rendering demo that was done by STI, which is the people who developed the Cell, doesn't use the graphics chip at all. That 3D landscape was generated in real-time from two input data sources and a software renderer running on the Cell created the final image. All that it does is output as a bitmap straight to the video hardware - it doesn't even create a single polygon, there's no concept of a polygon in that demo.
Not sure why i'm asking you guys this, you only know as much as i know.. But they are doubts that started creeping in my head as soon as Sony started the big talk...