Naughty Dog has quite the sense of humor.
Those who have been following along with graphical trends this generation can easily point to the decided lack of vibrant color in some of the top titles. In fact, it has been debated many times in gamer circles everywhere; why do so many of even the best-looking productions seem to focus on grays, browns, black, and dark greens; i.e., drab colors? Well, Uncharted has always been the exception to the rule; those lush environments are very, very pretty and just a joy to behold. But if you want to see it in "true next-gen" format, the developers have provided you with the "Next-Gen Filter," which puts a "bland blanket" of sorts over that healthy color palette. This feature was in Drake's Fortune but this time around, it's even more exaggerated and hence, more comical. They've got some screenshot comparisons in the gallery through that link and as you can see, it's a fairly pronounced difference and one worth laughing at.
Yeah, something like Gears of War looks awesome but the lack of color in this generation was really starting to grow tiresome. It was one of the reasons why the first Uncharted really opened our eyes to what bright shades and hues could look like in this generation. And Uncharted 2 took it to yet another level. But if you need that "Gears-y" look, you can have it.
Related Game(s): Uncharted 2: Among Thieves