I think this would work better as either a dashboard widget or a menu bar icon. That way we don't have to have an extra application running in the dock. I believe MAMP has a dashboard widget, which I found to be very helpful, but mamp seems dead, and I am starting to like XAMPP a lot better.
Also, I think things like (re)start all & stop all and re(start) Apache/MySQL & stop Apache/MySQL would be nice additions to the commands performed.