Best Futures of 2007

We've seen a lot of futuristic visions this past year, but sometimes even the coolest ones aren't exactly "best." I mean, the greenified New York City in I Am Legend looked great, but who would want to be the guy in that future? For our list of best futures, we've picked tomorrows that are sometimes perilous but always… » 12/28/07 12:00pm 12/28/07 12:00pm