InstaSquarer is a flexible, powerful app for taking and posting pictures to Instagram. You can either post photos from your albums or take pictures directly in the app itself. You can easily drag and scale images, and InstaSquarer can export images with a resolution of up to 1200 x 1200. You can share these photos directly to Instagram, as well as Facebook, Twitter, and other photo sharing apps.
Full story from the WPCentral blog...