We already have a feature request for including such thing into server status :-).
Excellent.
So yes, we're definitely interested (please note that your class needs to be licensed under GPLv2 compatible license so that it can be included in phpMyAdmin).
Not an issue. I will put it under whatever license PMA is.
The only question is whether to integrate it into some existing page (what I would prefer) or to create new one.
Let me create the class, and a driver script for that. Once you have seen how it works, you should have an idea where it would fit.
Thanks!