With all the reports of MacBook Airs with display and wake-from-sleep issues, I figure it's a good idea to take a poll to get some (unscientific) sense of how widespread this is. Feel free to post details below. My 13" MacBook Air 2.13GHz 4GB model had the wake-from-sleep issue. About half the time it went to sleep, it would have difficulty waking up. The backlight would turn on, but the screen was blank. Sometimes keystrokes or opening and closing the lid would work after a few minutes. Other times it required powering down, and one time it took me nearly an hour to get it to come back. Apple replaced it under warranty and my replacement has been fine since. They didn't even attempt any software fixes or repairs. They just swapped machines. I still think it was probably a software issue but don't know for sure.