OK, I overlooked a very, very sweet app, simply called Remote. It controls your iTunes on the computer or, more importantly, an AppleTV. The AppleTV needs a software update, but once you've got it up there, it makes the AppleTV a hundred times more useful because you don't need to depend on the TV to use it. As a big iPod hooked to your stereo, essentially, this is a dreamy app. It's faster to navigate than the on-TV stuff as well.
I have to admit, that despite the rather locked-down nature of app development for the iPhone, there are already some very handy and well thought out apps there. And just like that, Apple's ecosystem takes another leap and does things no one else could. You almost wish they'd get something wrong, just because.