The VESA group today officially released Mini DisplayPort as a finalized standard. Known for short as mDP, the Apple-developed connector can now be used by other companies to attach displays with the expectation that they will meet all the DisplayPort 1.1a specs. It's expected that mDP will find its way into notebooks beyond the MacBook line but also into video cards with many video outputs, such as the upcoming six-display Radeon HD 5870 Eyefinity6 Edition.
