I agree Photosmith is a slick app. The busy work of keywording, flagging, rating, etc can be done easily. You can also download RAWs directly from the camera in the field which gives you an automatic backup. When you get back to your PC you can just sync on fast local wireless. For now I can't see the advantage of editing on a non color calibrated device where all your colors are going to need to be redone in Lightroom. Final sharpening and noise reduction using the Smart Previews are not even recommended by Adobe, even in Lightroom, as stated here. http://blogs.adobe.com/jkost/2013/04/editing-off-line-files-in-the-lightroom-5-beta-using-smart-previews.html
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