I worked at Mekanism in San Francisco for a couple months mostly programming in Actionscript3 Papervision for a few things. The front page of "Need for Speed Undercover" is a papervision panorama with interactive elements. I'm impressed with papervision but it still has all the eccentricities of flash-based anything. It was easy to get into from having been so into OpenGL all this time. There were plenty of example apps to show the art director.