ExtremeTech takes a close look at the DisplayPort v1.2 standard, you can read it over here.
DisplayPort is the new display interface appearing on an increasing number of notebook and desktop PCs and PC monitors. The PC industry plans to completely replace the now-existing VGA and DVI interfaces with DisplayPort over time, and doing so will both reduce the number of needed system display interface receptacles and provide new capabilities not yet realized. In 2011, systems with DisplayPort version v1.2 will start to appear, offering additional capabilities. This will include higher resolution support, enhanced stereo 3D capabilities, multimonitor support from a single connection, and other enhancements.