Radeon HD 5870 Eyefinity 6 - driving 6 HD displays from one GPU

AMD announced the ATI Radeon HD 5870 Eyefinity6 Edition, which lets you drive six monitors from a single extreme GPU for a maximum resolution of 6 X 2560 X 1600 pixels, powered by a single extreme GPU.  It provides six Mini DisplayPort connectors to directly drive the display or through adapters for single-link DVI and HDMI. Essentially the Radeon 5870 E6 is a 2GB version of the Radeon 5870 equipped with 6 mini-DisplayPorts for its output and 2GB of GDDR5 memory to accommodate the extremely large frame buffer needed by six HD displays.

No performance or pricing information has been set. Also no mention specifically of a CrossFireX option to offer additional power to drive the 6 displays without lag.

Since this is a Radeon card, everyone is talking about the 6 displays in terms of game play by the enthusiast.  But where I see this as really relevant will be in productivity (multiple apps on multiple screens) and of course as it moves into professional CAD and VizSim for things like virtual prototyping and design.