So I finally had a chance to watch that Leopard guided tour that everybody has seen already this week, and one thing struck me like a bricked iPhone thrown directly at my head: boy, Apple really does love iTunes, don't they? It's everywhere in Leopard, from the unified toolbars to the Finder with its CoverFlow interface and drop-down sidebars. Leopard might as well be called the iTunes OS.But in the future, a few months from now, we can only hope that some of Leopard functionality comes back around, and beefs up our iPhones and iPod touches. Until then, we've got this awesome hack-- someone has put Leopard's stack functionality onto the iPhone's little dock. Very cool-- if you made all four of the icons on the dock into four little stacks, you could have all of the application access, and none of the clutter.Especially when the SDK comes out (and already, those with jailbroken iPhones are feeling the icon squeeze), we're going to need expansion slots like this. Apple clearly borrowed lots of ideas from iTunes and the iPhone in their new OS, and with this idea, it's time to start borrowing them back.Thanks, Steve!