http://www.macnn.com/articles/10/03/31/creates.extended.mac.desktop/
CinemaView Duo handles dual Mini DisplayPort outputs
updated 11:45 am EDT, Wed March 31, 2010
Creates extended Mac desktop
CinemaView has announced a new Mac display adapter, the Duo. Claimed to be the first of its kind for Macs, the peripheral combines a single Mini DisplayPort input with two outputs of the same type. The result is a larger Mac OS X desktop, spread out across two Mini DisplayPort-based monitors.
Users must however have identical displays; these can be either two Apple LED Cinema Displays, or two CinemaView 24 LCDs. The adapter is then said to analyze possible output and generate a single extended desktop, in resolutions up to 3840x1200. The Duo should ship to Canada and the US on or before April 28th; pre-orders are being taken at a cost of $149.
Fresh-Faced Recruit
Joined: Jun 2007
Nothing new here
Except that it's using display port. These have been available in VGA or DVI variants forever. As far as the computer is concerned, it's only one display attached. Problem is that dialogue boxes and windows can end up spanned between the displays.