This already happens - e.g. xtrafinder.<p>But... it&#x27;s still odd that Apple cares so little about OS X that there&#x27;s been almost no effort put into the UI of Finder since forever. Even the most vocal Apple fans don&#x27;t think much of it. (Nor did Steve Jobs, by all accounts.)<p>In 10.6 there was a rewrite from Carbon to Cocoa, but not much changed on the outside. So it&#x27;s been reliably disappointing for nearly 15 years.<p>Considering Apple&#x27;s exploding cash mountain and the relatively tiny resources needed for an update (at the absolute max, a month or three for design, and a handful of developers for a year for implementation) it&#x27;s hard to understand why there&#x27;s been no movement.