Bloomberg tells us what any news source would today: Hurwicz, Maskin, and Myerson for the Nobel.
I have not read a paper by any of these people, so I'm not qualified to comment. The blogosphere seems to be focusing on Maskin, though, from a cursory glance.
Either way, Dixit will have to wait. The only real point I want to make is that I think the trend of awarding Nobels to multiple people is getting out of hand. Pick an individual and be done with it, barring very substantial and relevant coauthorship.
ANECDOTE: The article says that only one economics laureate is from Canada. Wikipedia disagrees. I'd resolve this conflict if I didn't have class.