Voted at my traditional time(mid-afternoon) here in Urbana, IL. No line, but their was a woman going through the provisional ballot process. She didn't seem like she was taking any guff, and was going to vote, no matter what.
Got my ballot, punched my holes, went to turn it in, and demanded my "I voted" sticker. The guy dropping the ballots informed me that they were out of stickers, and had called to the central office, requesting more stickers. The person at central stated "Yeah, you and every other polling place".
Apparently lots of voting is occuring out there.
My sister votes at a different polling place, and reports that she voter 305 out of a potential total of 500 possible. And this was at 4:115PM, and for most people work hasn't even let out yet.