Ok folks, let's get serious here. Still working on my MacBook Pro 13", 2.26Ghz Core2Duo, 8GB of RAM. Imported the scene 3 times - first opened the bip, then merged the bip twice - KeyShot 2 :P -, and now I have 60+M polygons in realtime. Still looking at 6 FPS.
Here is a screenshot.
Impressively! :)
(Especially with the hardware:2.26Ghz Core2Duo)