Pwn2own may use prepared exploits, but researchers tend to go for the easy low hanging fruit, so there is a lot to infer from who falls on the first day etc.

Read this from the horse's mouth and see what you can infer from it. http://www.zdnet.com/blog/security/questions-for-pwn2own-hac...

I thought the Mac was exploited first because a Mac is more valuable than most Wintel machines, thus a better material prize.

You really think the hackers who spend hours of meticulous planning in preparing the hacks do it for the material prize? Insightful...