Has anyone else had a problem where the Touch sucks the battery down even though it's supposed to be sleeping? I've turned it on after a couple of hours to see the charge half gone even though I haven't done much that morning. This morning, when I woke up my Mac, the Touch also woke up since it's connected to a USB hub. But it said the battery was down to 10%, and I know it was fully charged when I put the computer to sleep last night. I know the hub doesn't supply power when the Mac is sleeping, but the Touch shouldn't have been doing anything. Anyone know what causes this and how to avoid it? It's a pain having to worry about whether I'll be able to take the Touch with me in the morning or whether it'll last the whole day. Not to mention shortening the life of the battery so it'll have to be replaced sooner.