The Lowdown App Name: Air DisplayPlatform: iPhone/iPad paired with OS X/WindowsCost: $9.99 What Does It Do? Air Display is one my favorite new additions to my mobile office. Air Display is a universal application for the iPhone/iPad that pairs with a small application on your desktop (OS X and Windows). It turns your iPad or iPhone into an additional, wireless display for your computer. The best part, touch works! It’s especially great for applications like Photoshop where you can put your tool palettes on the second monitor and just tap them. It also works pretty well for basic drawing tasks….