I've been playing a bit with the new flash 10 3d possibilities, and found out that rotating a sprite in 3d is fairly easy:
var card:Sprite = new MyCard()
card.x = 100
card.y = 100
card.z = 200
card.rotationX = -60
addChild(card)
Simple and effective, this shows the card rotated with perspective.
Now I want to use an orthographic projection, and I have no clue where to start. DisplayObject does have a perspectiveProjection member, but that can only make perspective projections of course. Maybe I should use the transform.matrix3D?
I'd think this should not be too hard, but I don't see how to tackle this issue.
UPDATE: as one of the comments suggests: setting the perspectiveProjection.fieldOfView to something close to 0 (10 actually produces a nicer result in my setup than something like 0.1) you get a projection that is nearly orthographic, that might be good enough.