Air Display adds HiDPI support for Retina display devices
April 3rd 2012
Air Display, which I reviewed back when it launched, extends the desktop of a Mac or PC to an iOS or Android device. It also works between Macs, but the key feature is allowing an iOS device, specifically an iPad, to function as a secondary computer monitor. This update is pretty cool to both pump out high-res Mac graphics and utilize the new iPad's Retina Display.
Air Display