After over a year of not listening to my nagging collegua (Away3D-team member Fabrice Closier) telling me to start working with (Away)3D, I caved…
I started to experiment a little in Away3D and turned my 2D jellyfish experiment into a 3D version. You can watch the result here: http://www.powerupmedia.nl/#/exp080603

I added a couple of tricks I learned way back when I created levels for Unreal Tournament.
For example I added a second viewport for the skybox (in this case a sphere), because the Away3D Skybox-class is in fact not a real skybox but just a really huge cube rendered in the same viewport as the rest of the scene.
The camera in my skybox viewport points in the same direction as the camera in the main viewport but always stays at point (0,0,0). This way the camera will never approach the side of the skybox, giving the illusion that everything in this viewport is really far away.

All-in-all a good start in Away3D if you ask me. I hope to do some real projects with 3D in the comming weeks…