Stupid question: the touch owner's manual and Apple feature guide say that in order to turn off the touch, you hold the "home" button for a couple of seconds. Is this true? In practice, the only thing I've been able to get to work is by holding the sleep/wake button for a couple of seconds, and then I get the "slide to power off" screen. I assume that sliding actually powers off the touch. It's just odd, because it seems like when I come back to the touch after turning it off this way, the battery is lower than I left it.