Microsoft, the company behind Windows Mobile, has released an application for the rival iPhone. Seadragon Mobile allows users to view images with giga-pixel resolutions. This application has been created to allow users easily to zoom in on the details of very high-resolution images, such as a map. It makes use of the iPhone’s multi-touch capabilities, so users can zoom in or out on an image by tapping or pinching their fingers. Seadragon Mobile is available for free on the iTunes App Store.