I know two people who had surgery for plantar fasciitis already this year. Not saying that should be your method of treating it, but that I'm surprised (as scalpel-happy as we are) that he refuses to treat it with surgery. They're both back running and are pain-free.

Fortunately, I've never had to deal with it, so all I can do is wish you luck! It sounds like you're doing everything right at this point. I hope it heals quickly.