It's interesting that you can still see the jitter in the second to last video, through the lens flare. The motion stabilization pans the image around, but the lens flare bobs around and can't be fixed.
I'm noticing the slightest stutters with 32gb, quad core i7 and a gtx 780 on chrome. I'm assuming it's a connection thing.
Same when I watched the video links directly.
Downloaded the tree one (which is where I noticed it) and played it with VLC twenty times or so on loop; didn't pick up any stuttering then. Must be something with chrome or my network (for me)
http://d3eterog612le0.cloudfront.net/steady/videos/homepage/...
http://d3eterog612le0.cloudfront.net/steady/videos/homepage/...
http://d3eterog612le0.cloudfront.net/steady/videos/homepage/...
http://d3eterog612le0.cloudfront.net/steady/videos/homepage/...
http://d3eterog612le0.cloudfront.net/steady/videos/homepage/...
http://d3eterog612le0.cloudfront.net/steady/videos/homepage/...
http://d3eterog612le0.cloudfront.net/steady/videos/homepage/...