From morphos.net:
"MorphOS is capable of displaying to multiple monitors "

Can someone explain in more words of how it works.

Is it already a existing feature?
Would I be able to re-direct any screen to any monitor?
Does it work with multiple simultaneous gfxcards or with a dualhead gfxcard? (or both)
How many monitors are supported?

It will work if you got 2 (different) GFX-cards, unless one is a Radeon
(maybe that is fixed with Peg2 ??). So a Voodoo and a SIS or Permedia
should do o.k.

Both cards will list their modes in the screemode-requesters, so it should be
possible to redirect every screen.

In theory you could have endless monitors, but offcourse you will be limited
to the number of slots, and the number of supported cards (2 of the same kind
won't work AFAIK).