Very nice visually, and incredibly slick workflow, though it renders pretty slowly at full size. Poking in the code... are you blurring the images in JS at every level? Since you're using webkit + mozilla + IE specific CSS, why not use CSS transforms to do the same thing, but with hardware acceleration? I haven't done it myself, but I'd assume blur is one of the filters possible, and I know you can do those transitio…
Blur is only possible in IE with filter:blur (and I use it if available) - I've been bugging people to add CSS blur to WebKit :)
In any case, gorgeous work :)