For a moment I got rather excited when I saw this blurb about a connection between backlit displays and melatonin production - namely that looking at an ipad in the dark will make it harder for you to fall asleep. The study looks legit (and has some great sci-fi photos to boot) but was only conducted with 13 individuals - maybe that's a decent sample size but it seems fairly tiny when you think about the number of backlit display devices out there. Regardless, I think we're going to start seeing a lot more research in this realm.. computers and our natural order are strange bedfellows to say the least.