Hi Ben, Hi David. Thanks for sharing this very useful tool.
I enconuntered a problem with the mousepointerhandler class (Linux, R2011a):
If I register a new pointer for an axes object within a figure which has units set to normalized, the axes position is not identified correctly. I could resolve the issue by changing the reference figure handle from 0 to figh in line 120 in the mousepointerhandler classdef.