I have attached some quick instructions on how to enable the SMART Utilization Monitor tool. Note that you will need to enable the tool on all computers that are connected to a SMART board that you want to get the information on. You could save these files to a location on a server if you wanted so you wouldn't need to access each computer to make things a little easier.
The information isn't really detailed but it does tell you how much time the SMART board is on (i.e. how long the computer is on and the board is thus plugged in) as well as how much ink time etc.
Not sure how helpful this info is but I'm going to start using this soon on all of my boards just to ensure I know the boards are getting used.