Rumors of Retina Display-equipped Macs circulating ahead of Appleís WWDC scheduled for next week have gained further momentum with the appearance of apps getting prepared for the anticipated launch or launches. A well-known utility made by Brothers Roloff called FolderWatch Mac App Store has surfaced on the Mac App Store newly updated to support ëRetina graphics.í Whether or not this can be taken as confirmation or pure speculation on the part of the developers will likely only become fully evident when Tim Cook takes the stage next week.