Okay, well in theory, you can set up phpmyadmin on one server, and connect it to a MySQL database on another server. So in theory, you could connect one PHPmyAdmin to many different servers… you’d probaby just have to change the db connection file. I haven’t done it… just theorizing =)
Like PHPmyAdmin, it’s not exactly a complicated program. You tell it what to do, and it does it.