@Dno: That's not neccessarily true.. In Sony's case they could just add more cores and clock the Cell faster and add an increase in RAM and the only major change would be the graphics chip. Engines could be retooled for not a huge amount and it wouldn't change the cost of games by much at all - It'd just be a push towards usng ready built engines.
If the standard was pushed to 1080p then art would have to be higher quality and THAT would increase costs be a fair amount but it wouldn't be like going from PS2 -> PS3







