Aviary has officially released their image-editing SDK for Windows Phone. And keep in mind, they have released an SDK. Simply put, we could begin seeing other Windows Phone apps take advantage of the power of Aviary and begin offering the ability to edit images within apps. As one would expect with an SDK, the Aviary tools will be free for Windows Phone developers to use and this release means that the Aviary SDK is now available for Android, iOS and Windows Phone. More to the point for end users, some Windows Phone apps that are already using the Aviary SDK include the Rowi Twitter app and the Rekap collage maker. Moving forward, some apps that are planning to incorporate Aviary include 4th & Mayor and Postcard on the Run.