There’s a reason some people are fanatical about Apple’s design; it’s because they (Apple) consistently think of new things, pay attention to tiny details, and never stop trying to improve.
Maybe this isn’t new to the site, but I hadn’t noticed it yet; I stopped by Apple’s Mac page today, and saw this:
It’s a pretty simple, obvious UI feature idea; scrollbars are a common UI feature. Why not add labels?
Why not, indeed. You wind up with an attractive and intuitive user interface component. I don’t think it will take too long before we see this idea copied and cloned quite a bit.