Instagram is a popular photo sharing application/service found on other smartphone platforms. For the most part, Windows Phone users have been eager to see Instagram app made available in the Windows Phone Store. But a change in Instagram's Terms of Service may change the level of excitement an Instagram Windows Phone app may have.
Effective January 16, 2013 Instagram will claim worldwide license to any content posted to the service. That means Instagram could use your photos for advertisement or sell them to third parties without any compensation headed your way.