Two big things that are now off my wishlist:
There is a new control in the status bar at the bottom of text views; it displays the current magnification of the view and allows you to change it. The control can be hidden (or shown) using the “Text Magnification” option in the Appearance preferences.
This means I no longer need to use another editor when presenting on a projector, etc. I also like larger views for writing prose, so I’ll probably use BBEdit more for that now as well.
There is now an adjustable split between the Currently Open Documents list and the Project list.
Now I can go back to using BBEdit as I did so lovingly pre-version 10 (when the open document list was in a drawer)! I submitted a ticket requesting that this pane be made resizable in 2011.