This is about the camera that follows you around in the world, not the one that is an inventory item to take pictures. I've noticed a lot of weird jerkiness as I walk around since yesterday's new behavior was rolled out. Easiest seen and not described, so here's a video from me walking through my house: http://youtu.be/WW3zmgA-2nE
I'm on a MacBook Air i7 on Lion. This is Safari 6.0 with Flash 11.4 r402. It does not seem to be a byproduct of low available memory (there's plenty) or of my browser running for too long (I've restarted a few times).