Sky Factory have just launched Sky V a virtual skylight using a multi-channel graphics processor and specialized synchronization software for display of proprietary HD content. In essence SkyV simulates a real skylight, presenting hours of visual content captured from beneath beautiful skies and trees world-wide.
Applications include: hospitality (casinos, restaurants, hotel lobbies), healthcare (radiology suites, waiting and treatment areas), corporate (board rooms, offices and conference rooms) and residential (dining, home theater and bedroom).
No details on pricing but i guess if you have to ask its not a good sign…
Take a look at http://www.theskyfactory.com/index.php for full details.