DL it now, and I have started creating a theme for the retina display. I will call it, Magorium. And its gonna be a beauty....hopefully
I'm fine with the Apple default folders for the part, at least in the sense that their design is so you can see what's in them. However, if they didn't limit the contents to 12 apps you could simply make one folder for all of one particular genre and wouldn't need to know what's in it because everything in that particular type is in it. That would be my main request: Ditch the folder limit (or at least raise it to a respectable amount and allow scrolling. I realize it'll be slower because of all the icons it will have to load, but I'm fine with that) and create an array of folder graphics to choose from when creating one. Nothing difficult about that.
I think the idea of folder graphics is good, although I don't have a problem with them now anyway. They do what they are supposed to.
To a point... then you hit 12 per folder and they stop doing what they're supposed to and your springboard gets cluttered by folders instead of apps.