After Sony's announcement of the PS3 Slim earlier this week, CNet took a look back at size-reducing hardware revisions over the past couple decades in console design, noting that they're gradually arriving sooner and sooner after the initial release. "Does that mean it'll creep even lower, into two-year or even yearly cycles between major revisions? Quite possibly, yes. It's worked very well with handheld gaming devices, and even some consumer electronics devices like iPods. Apple has turned out slimmer, more powerful versions of the iPod every year since 2001, and yearly events like E3 put continued pressure on console makers to show off something big. In the case of the PS3 Slim though, it could just be that the PS3 had to be pushed out to meet its launch window, and that the Slim is what Sony was going for in the first place.