Matrox Graphics has released PowerDesk for Mac, a new desktop
management software for Graphics eXpansion Modules (GXMs) used with
Macs. PowerDesk for Mac improves how, and where, windows are
arranged, making it easier to use multiple applications on a Matrox
DualHead2Go or TripleHead2Go multi-monitor set up, according to
Caroline Injoyan of Maxtrox Graphics.

The PowerDesk software comes with an interface for setting supported
GXM multi-display modes. It sports features that eliminate the need
to manually position applications on a multi-monitor configuration.
With a keyboard shortcut you can move windows between monitors while
maximizing a window to fit a single display. In addition, the Dock
can be dedicated to the bottom left, center, or right hand side of
your preferred external display.

For more information on PowerDesk for Mac software go here:
http://www.matrox.com/powerdesk_mac