Having used PHPMyAdmin for years I was really happy it was part of the Virtualmin package.
Could you please consider including Adminer, http://www.adminer.org/en/ as its much lighter weight with in most cases more functionality.
I am aware this is an old post , but seriously after using adminer , i really feel virtualmin should give adminer as Mysql management tool alongwith phpmyadmin or replace phpmyadmin with adminer.
Unless i am missing any security issues , i hope virtualmin devs can add adminer .
File a feature request ticket in the tracker! It looks pretty easy to support (one file is pretty simple to install), so I suspect Jamie would be OK with adding it.