Designers producing digital editions of magazines, brochures and the like using the Mag+ platform can now output publications to the new iPad's 2,048 x 1,536 resolution Retina display, Amazon's Kindle Fire, iPhones and seven-inch Android tablets.

Once a design is complete, the publishing platform exports to any format - automatically delivering the right version to the right device.The April issue of Popular Science+ is among the first Retina-enhanced titles using Mag+, along with MAD Magazine, which debuted this month among the top five best sellers on Apple's App Store.

You can now also disable the ability of the user to double-tap to turn off the A layer in a two-layer vertical layout, and specify 'long press' as the only gesture to call up the navigation on a particular issue by checking a box in the Production Tool.

Publishers can also give away a free issue with an app, and add in promotional in-app store banners open links via the in-app browser.

Future additions will include support for InDesign CS6 as soon as it's launched, and tappable covers in the store and library.