My 4 y.o. daughter has all but comandeered my 3rd gen iPod Touch. It's 32Gb is mostly full of Disney and other videos which keep her well-entertained when we're in the car. I want to get an iPad (waiting for the next gen, of course) but am wondering how well running two different devices will work on my PC with one instance of iTunes. I don't want them to be de facto clones of one another. If I download an iPad app, will it try to load on the iPod? And vice versa? Can I select different music and videos to keep on each? How's this work?