I really like OS X's hiding scroll bars. Whenever I scroll, it appears in my peripheral vision and gives me an indicator of progress. Then it disappears when I

I really like OS X's hiding scroll bars. Whenever I scroll, it appears in my peripheral vision and gives me an indicator of progress. Then it disappears when I don't need it. It's likely things can be improved further, but IMO this is a better starting point than what we had before.