Just like the iPad app, Lightroom mobile uses the RAW file to create a compressed preview version that's only about 5 percent of the original size (around one to two megabytes). The original is maintained, and a 2,560-pixel wide image ensures that the collection you edit during your evening commute doesn't take forever to download or take up all of your storage space. As we've already mentioned, Adobe says you'll need 8GB of internal storage (not extra space you've added on a microSD card) to move the files back and forth, along with a minimum 1.7GHz quad-core CPU.
Remember when I said most of the key features from iOS made it over to Android? Well, the one difference is Lightroom's commenting system is absent on this version, but Adobe says it will be part of a future update. You can, however, still like, flag and reject images as needed. My biggest gripe here is the lack of tablet support. I've used Lightroom mobile on an iPad, and the app seems much better served with the larger display of a slate. Here's to hoping Adobe's plan to outfit Android tablets is just around the corner, but until then, those who prefer Google's software will have to settle for using smaller screens.