Microsoft and Stack Overflow are joining forces on a fun Windows 8 development contest. And since one of the strengths of StackOverlflow is how the community reviews all the content, it only makes sense that there's a serious review component to this contest! And it's not US-only (for once!) so as long as you're over 18 and don't live in Cuba, Iran, North Korea, Sudan or Syria you're good to go. Well, you need a StackOverflow account, but you needed one of those anyway, right?
Top prize is $5,000 and there are shiny achievements and everything - so get going!