The Create competition looks like it will focus on many of the unique capabilities of Nokia's Windows Phone handsets. Spread over eight categories, you have a mix of 'mini missions; which ask you to add in new features to existing apps, and 'master missions' that are looking for brand new apps.
Nokia's description of the contest is as follows:
Nokia Create is a global competition to develop apps for Nokia Lumia and Windows Phone 8. It's your chance to win prizes that will help you and your apps stand out. Prize packages include devices, promotions, credit for ad campaigns, and more.
There are 14 missions built around 8 categories, so whether your skills lie in imaging, gaming or something entirely different, there's an opportunity to win. You can also take this as a challenge to learn something new. Each mission has a specific focus; from shorter Mini Missions, where you add Nokia’s APIs and new features to your existing Windows Phone apps, to Master Missions that challenge you to develop new apps.
You can find more details on Nokia's dedicated Create mini-site.