Photosmith, a new app for Apple's iPad that allows sorting, rating, captioning and keywording of pictures on the go, and then later syncing those pictures and metadata to Adobe Photoshop Lightroom on a Mac or Windows computer, is now available from the iTunes App Store. We've had the pleasure of using Photosmith during its beta period and it has already joined our list of must-have photography apps for Apple's tablet. If you use Lightroom and own an iPad, we strongly recommend checking out Photosmith.

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