At they have a link to:

Where they have a system that lets you attatch how many LCDs you want to different configurations I believe the max it 10.

Also, have other multimonitor products such as:
A LCD wall 4 to 64 screens.
They're working on multimonitor work stations
and have dual and quad head video cards
(They are a resseler of 3rd party cards, just a large list of them)