Not sure if this is possible, but an undo button would really come in handy. I haven't needed one yet, but I'm sure I'll stumble across cases where it would be nice. I'm sure many folks would use it. The JCK editor I suggested in the past has this feature.
As for Scott and everyone else... all right, I'll get working on the better styling for transitioning from the new editor to the old. What will this do? Make it easier to find the old editor button and make it look nice. Let me think on this.