Microsoft has launched an app for Apple's iPhone.

Seadragon Mobile, which is free to download from Apple's iTunes App Store, gives users the ability to access online photo libraries either using the iPhone's 3G or Wi-Fi connection.

These include images available of Microsoft's Photosynth site, which allows users to stitch together hundreds of digital photographs to create a 3D image that can then be looked at from all angles, or even viewed in close-up detail.

The app also offers an RSS feed so users can be notified when new content is made available.

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Microsoft Live Labs group product manager Alex Daley told TechFlash: "The iPhone is the most widely distributed phone with a (graphics processing unit). Most phones out today don't have accelerated graphics in them. The iPhone does and so it enabled us to do something that has been previously difficult to do. I couldn't just pick up a BlackBerry or a Nokia off the shelf and build Seadragon for it without GPU support".

See also: Outrage over drug dealing iPhone app

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