i updated to the latest version (4.0.1) and i think im supposed to have backgrounding, my friend's iPod touch has it.... but my iPhone 3G won't do it. I click the home button twice (as instructed to do from the video at apple.com) and it just brings up the music options. And when i enter Settings > General > Home Button, under "Double-Click the Home Button for:" it only shows the Home, Search, Phone Favorites, Camera, and iPod options