Approved Mac OS app boasts 'Retina graphics'

As if there wasn't enough speculation already, what with WWDC just around the corner, bets are already being placed on the possibility of "Retina Display" Macs. So, when an app turns up in Mac App store mentioning "Retina graphics" under the new features list, eyebrows are understandably going to rise. Of course, this isn't the first such tease we've seen, but it's not the least convincing either. So, we're still not ready to put our money down on a retina-reveal next week just yet, but those odds do seem to be getting ever shorter.