This monitor popped up on Dell's page for ordering. It was announced some time ago, but looks like it's available now. According to the specs, they list the Mac as being supported. It has dual 1.2 display port to support 5k, and comes with two mini-display port to display port adapters for the Mac to drive it at 5k. I'm guessing it treats the monitor like two displays? Wonder how that will work in Yosemite now that dragging from one window to another, makes half the window transparent. Hopefully there will be a software update from Apple that makes it so this doesn't happen with the display.