Skyward Sword introduces mechanics that are new for Zelda (dungeon-ifying the overworld, stamina dashing/climbing, dowsing instead of compass, upgrading items, bomb-rolling, giving unique items earlier, etc), but I mean in terms of gaming in general, there is nothing as monumental in SS as Z-targeting in OoT or 4D gameplay in MM. Plus, besides the way the dated hardware already holds back the scale of the world, the world looks further fragmented by the "zoning" of the overworld; it's been confirmed that the three regions are unconnected and accessed through distinctly gamey holes in the stratosphere. I guess what I'm trying to say is I'm still seeing SS as many parts rather than as something more than the sum of its parts. But I reserve final judgment for when I've finally had time to drink in the game at length. In the meanwhile, at this point in time, everything just looks a bit dated, fresh only by Zelda's own conventions, and while I know it will be tightly designed like Galaxy, I just lament the fact the game could've been so much more with the hardware power and budget to match its imagination.