While Office for iPad sure is a great addition to the App Store, users might be a little bit disappointed with the fact that they need to get a license. That's why Microsoft revealed a brand new contest that could help boost adoption of its new Office productivity suite. Bring your iPad in a Microsoft Store across the United States and, if you're lucky enough to be one of the 50 people to do it, you can win an Office 365 subscription for 1 year. The contest kicks off on Friday.