Mac developer David Stanfill has released AirParrot, a new OS X application that allows users to stream their Mac display to their Apple TV over AirPlay. The application allows users to stream any connected display to the Apple TV in real-time, and offers underscan and video quality adjustments, as well as an option to show or hide the mouse cursor; audio streaming is not currently supported. AirParrot requires OS X 10.6 or later and sells for $10.…