Anybody use Photosmith iPad app? (D800)

I haven't tried the app and I'm looking for a second opinion before I buy. Apple store didn't have too many reviews.

For anyone wondering, it's an app that syncs with Lightroom so that you can edit photos on your iPad. I've been trying to figure out if you can have scaled-down versions (JPEG) of images on the iPad so that you don't have to save RAW images to the iPad. I would love to sort through thousands of images on my couch instead of at my desk and I think this app could be an incredibly useful tool.

Thoughts appreciated!

itunes.apple.com/ca/app/photosmith/id427757668?mt=8
http://www.photosmithapp.com/