iPhone Safari the first commercial multiscale browser?

At FooCamp Blaise Aguera y Arcas presented some amazing work being done at Microsoft (he presented this at TED too, so I don't feel I'm violating any of the Foo Blogging Guidelines here) involving multiscale graphics. It was an incredibly mindblowing presentation of combining tons of graphics information at differing resolutions and scales such that they can seemlessly be navigated together. It's incredibly hard to describe, but you can see it here. Or you can just boot up Safari in the iPhone, because that's what's happening there. Safari shows you the site at a one scale, let's you zoom into another scale to see something better, adn you can keep going smaller until the content stops. Given how overwelming the effect of near infinite zooming of multiscale graphics, perhaps content providers should experiment with embeddeding smaller and smaller elements in their divs that will be seem by iPhone browsers when they zoom further in. If, of course, they can get all that content down the pokey puppy EDGE pipe.