Actionbar Bindings
 

I'd like to be able to see what my binding is, regardless if there is an icon there or not unless I choose to "Hide the Icon." when there is no ability on it.

It's incredibly annoying having to guess what button has a certain binding on it, when I've set a binding to that button.

im not on the latest svn version currently, but for me it shows the binding on buttons, it does not matter if there is a spell on that button or not.
maybe you just did not enable the 'show key binding' option in the actionbar configuration ?

I can certainly see key bindings when an icon is present, sure. Just not otherwise.

Let me go confirm that it wasn't my own fault, though, just to make sure.

Edit: Made sure, it's 100% not a problem on my end. It absolutely will not show me a binding unless there is an icon present.