I think what has happened is that graphicly both systems have reached their climax. If you think about it the technogy for both systems is 3 plus years old. In electronics that might as well be 100 years. Don't get me wrong. The posibilities with these systems are amazing, but people shouldn't expect their capabilities to expand any further. The average PC is going to start edging ahead again. I can't wait for next gen stuff.
Well first off, neither console is nearing it's "climax" they both have PLENTY of headroom, (at leastI know the PS3 does), hell the Cell processor by itself is sadly superior to a HUGE majority of PC processors.
Second off, there already are games that run better than DMC >_> it's just a problem with multi-plat, I know for a FACT that there are PS3 exclusives that have a much prettier resume than DMC4 and they run just fine.
Third, I hear this brought up so many times about PC resolutions, my problem with PC resolutions though is that I just don't care :/, my monitor could display 8million by 12 million or whatever way, but if it's only a 22" monitor, the point seems fairly moot >_>; I'd much rather have games optimize to look great on a 40-60 inch TV than a computer monitor. :/