Here's a few more ideas I ran across:
-Icons for favorites
I had to create manual buttons because I wasn't able to set those. Also, I haven't found a way to specify how the text label in a favorite list in a toolbar should be displayed. I'd like to remove the label (hence the icons)
-3-way button:
Ability to set which button should be used for a command. If you want to use the middle mouse button you always have to make an empty command for the right button?
-Command for new file:
I haven't found this, but similar to the CreateFolder command there should be a CreateFile command that creates an empty file.
-Simple search field like in browsers:
Not really needed, but a simple search field like in Firefox or Opera right of the address bar would be nice. Alternatively, a textfield element in a toolbar with customizable actions could be used for that (by flattening the current folder and applying a filter)
-possibly an middle-click->"open in new tab in background" option.
Yes I read the FAQ, but that's not quite what I meant. The marking files with middle mouse button is nice, but as you can also use ctrl for it it's a bit redundant IMO.
-Ability to remove buttons in pane-frame:
If you don't have any use for those they are just visually distracting. I saw an option to remove two of them, but there's still some left.
-Ordering tabs with drag and drop:
This is something that every tab bar should support, I even use a program for the windows taskbar to allow me to do this 
-Disable tab renaming:
Again, if you don't need it, it's just distracting. Maybe I'm a bit nitpicky, but it should be just a simple option.
Just a few ideas, would be cool to see some of them implemented. If you have any idea how to accomplish any of those things in the current version please let me know.
