I know a lot of people still want a tabbed Finder, which would be kind of cool.. although I don't really see the great usability of that, maybe someone can enlighten me? Don't get me wrong- I use tabs in my browser extensively and couldn't get along without them now... but in the Finder? Anyway, the main use that comes to my mind for a use with tabbed windows in the Finder is for having multiple directories open to copy stuff to without having to have multiple windows all over the desktop. In that case, I say why not just simulate a tabbed Finder experience via a function that's already been there? You can drag folders to the top section of the Finder window and have small icons stick that you can click on to go directly to that folder, or you can drag items to the icon, let go, and they'll be moved/copied. I'm not sure how many people actually use this, but I thought it'd be something worth noting. You can simply right-click the icon and choose remove when you don't want it, and you can of course do away with the name under it, but I put it there for illustration purposes in my screenshot below- it also takes up less space without the text. Simply drag the icon to that area and wait a second and an invisible "space" will open up for you to drop it. Now, this could also just as easily be done by dragging the temporary items to the left sidebar, but this is just another area of unused space that could be utilized.