Starting Saturday, an exhibit called "Wired Nextfest" will be showing-off inventions from around the world. Some of them may change your life. Looks like Millennium Park is heading off into the next millennium. For instance, Toyota is developing what they call the I-real ... It's a souped-up, cooler, smoother version of the segway. It could hit the market in a few years. This is all part of "Wired Nextfest" which for the next two weeks will feature forty inventions from around the world.