One month ago, Apple unveiled a new model of Macbook Pro with Retina display. Default resolution on the Macbook Pro Retina is 1440×960 but LCD panel has an actual resolution of 2880×1800. This is quite revolutionary as most users will not see any pixels on this sort of display panel, as for latest iPhone and iPad.
However, most applications need to be optimized for this new sort of display, otherwise some GUI elements may appear pixelated or blurry. We’ve started to optimize our apps to support this new Retina technology. Expect new releases in a few weeks.