Hi Hans,
I personally haven't used this control but according to the code, a click event is fired on the "map" control when it's clicked. You should be able to catch this event by defining a function on the "click" property of your control or by adding an attachClick (depending of your implementation).
This event should give you the following infos:
- map (reference to the control)
- context (the binding context)
- lat (the latitude)
- lng (the longitude)
I hope this will do the trick for you...
Jon