trying: mysql-dfsg-5.0
accepted: mysql-dfsg-5.0
   ori: 71+890: i-3:a-0:a-0:a-23:h-13:i-0:m-8:m-10:p-0:s-0:s-14:a-890
   pre: 71+887: i-3:a-0:a-0:a-23:h-13:i-0:m-8:m-10:p-0:s-0:s-14:a-887
   now: 71+773: i-3:a-0:a-0:a-23:h-13:i-0:m-8:m-10:p-0:s-0:s-14:a-773

In other words, the transition of mysql-dfsg-5.0 to testing has reduced the uninstallability on armel from about 900 packages to less than 800. Still some way to go, but good progress.