If this challenge is anything like the Netflix challenge, there will be a bunch of semi-professional research teams that will actually be the true contenders.
The rules are given below:
1. Here are the rules in more detail:
"The challenge is to locate ten moored red weather balloons located at ten fixed locations in the continental United States. Balloons will be in readily accessible locations, visible from nearby roadways and accompanied by DARPA representatives. All balloons are scheduled to go on display at all locations at 10:00AM (ET) until approximately 4:00 PM (local time) on Saturday, December 5, 2009. Should weather or technical difficulties arise with the launch, the display will be delayed until Sunday, December 6 or later, depending on conditions. If, for any reason, the balloon is displayed in one location then moved to a second location, either location will be accepted. Entrants are required to register and submit entries on the event website. Latitudes and longitudes are entered in degree-minute-second (DDD-MM-SS) format as explained on the website Coordinates must be entered with an error of less than one arc-minute to be accepted. In the event that one or more balloons is never displayed, this fact will be noted on the event website and the rules adjusted accordingly."