Of the many rumors about the U.S. release of the iPad 3, the most promising is increased screen resolution, experts say. The consensus in the Apple-watching community is that the iPad 3 will carry a Retina display with a 2048X1536 pixels resolution, Slashgear.com reported Friday. That would be a four-fold increase over the current pixel resolution. The speculation grew when Apple recently updated instructions for developers sending in screen shots for their iPad 3 apps, saying screen shots for apps in iTunes Connect must be submitted in resolutions higher than the current requirements. A leaked photo of some iPad 3 components showed three wide ribbon cables as opposed to the two that the previous models had, with the extra cable more than likely in place to carry additional data to the high-resolution display, Slashgear said.