If you are in to technology and are interested in what the future holds, this is the place to be when it comes to town September 27th to October 12th. Wired magazine sponsors a future technology event which they call NextFest. A few years ago it was held in Chicago and I attended. It was a blast and well worth my time and cheap to boot. And this year it is FREE!
Here is the website with further information.
If this years is anything like a few years ago, I highly recommend checking it out. There will be a lot of really cool and pertinent technology on hand to play with and see up close.