arrays/instances in blender

is it possible to create arrays of a face, similar to 3DS’ array function?

for example i have a plane with 4 faces and then make the 3 faces an
instance of the 4th face, so that if I add a hole or edit the 4th face the other three receives the same treatment. sort of like what ALT-D does
on a copy, but this one is more specific to faces which are part of a whole mesh.

There is now an array modifier yep. It’s in the CVS builds, grab the latest from the Testing Builds section of the Blender.org forums found here: http://www.blender3d.org/forum/