This app uses cool computer vision technology to tag your photos before uploading them to facebook -- works well on videos too. It looks for the object set you care about in every frame, and tells you which frame has sunset, which frame has beach, car, cat etc. It's fun to find out what the computer can recognize in my pics. Uploading the tagged photo to facebook works great, and appends the tag list (both what the engine recognized, as well as your custom tags, which can say graduation, daughters birthday, summer vacation etc) to your wall posting, so your friends know what you emphasize in the photo being posted. It also links up very well with their VuAlbum app on Facebook. Currently facebook doesn't allow tagging of videos other than by user-id, so you can't upload the tagged video to facebook. The company will be adding Flickr and Picassa soon.