Skala Preview for Mac OS X (10.6 and higher) is now available on the Mac App Store for US$4.99. It’s an app to help designers and developers send “pixel perfect, color perfect ” design previews from a Mac to an iPhone or iPad.

Previewing your design lets you test tap sizes, text sizes, color, contrast and ergonomics during the design process. It closes the loop, meaning you can iterate faster to a better final design, according to the folks at Bjango, developers of the software. When combined with Photoshop CS5, Skala Preview can preview as you edit. No saving, no keyboard shortcuts, just lossless previews in realtime.