Did you know the InTrade.com electoral map also shows McCain leading now?

Someone earlier, when we mentioned that the Rasmussen, RealClearPolitics and electoral-vote.com electoral maps all show McCain taking the lead, said "Oh yeah, Well Intrade.com's is updated every hour, and it shows Obama ahead." But it actually shows McCain ahead....just 5 short of getting the needed 270 to win. What do you think this means?