When the box for the Measure tool comes up, it would be very handy to allow it to show what units were last chosen. It maintains the last choice, but if I haven't used it in a while, I may not recall what units I was dealing in, and I can't see that unless I click the Choose Units button. Something like a little text box labeled "Current Units: " displaying whether I was in feet, meters or miles would be nice - when working at different scales and for different customers, it's not unusual to change units frequently.
