That's what a lot of the fundies are saying: http://judgementday2011.com/may-21-judgement-day/
I heard about this on NPR and I even saw a big billboard put up by Relevant Radio, proclaiming May 21st 2011 as Judgment Day on I-43 coming back from Green Bay this Saturday. People are quiting their jobs, spending their savings in the certainty that this is it and they'll be raptured at the end of the week.
If I had any idea how to do it, I'd organize a flash mob in reverse, a flash rapture if you will. If we could get thousands of people to just disappear from where their supposed to be and leave a little pile of cloths and shoes. Just think about when these folks start hearing reports of people vanishing and they're still here, left behind to face the tribulation. What FUN!