As you may have noticed, Adobe has just released Lightroom 5.4, along with the new Lightroom Mobile for iPad. Lightroom mobile extends your workflow beyond the desktop, and onto your iPad, where you can review, rate and even edit your images, and have the changes synchronized automatically back to your main catalog.
Lightroom uses the Creative Cloud storage services as the hub for this synchronization, and as a result, you must be a member of one of the subscription services for this to work, including any of the Creative Cloud plans, or the Photoshop Photography Program. The iPad app is completely free, so this is just another benefit of the Creative Cloud subscription. [More]