I ordered my iPad 2 awhile back and it's coming soon. I also ordered a smart cover and it arrived about three days after I placed the order. The smart cover is a rather ingenious piece of technology. I was looking at some of the reviews for the cover and they show the iPad turning off (or falling asleep) when the cover is on and when they take the cover off the iPad turns back on (or wakes up). You might be able to guess what my question is. When the cover is on the iPad does it turn the machine off or put it to sleep? When it's taken off, does turn the machine on or wake it up? I am of course talking about "sleep mode" versus being "awake". Also, when you're not using the machine, is it better for it to be in "sleep mode" or actually turned off?