One of my late suggestions to Joseph was the creation of multiple corruption tables.
There was a long thought process involved on how it would work and I am not going to put it all in this post, but the basic thought was as follows:
The first couple of corruptions only result in Minor (mostly cosmetic type corruptions). Just purely RP issues.
Greater starts into minor game play type corruptions
Major corruptions would be character altering type corruptions. My example in the email for a Major would be if you have a Patron of death... a Major corruption would be that you turn into a Vampire or Lich. It fits the game environment and it gives a really cool explanation on how some of the races/monsters appear.
If you worship the God of Frogs... you could turn into a Bullywog, etc...
I love this idea and hope it gets adopted into the main rules. It certainly will be added to my home games. I wouldn't mind seeing the full thought process, as well, if you don't mind sharing it. I think populating the world with twisted abominations who were once just like the foolish sorcerer is a stroke of genius and really hammers home the flavor of the setting.