just listened to it and the Fred Phelps impersonation was extremely hilarious. I dont know the guy (Phelps), im from the Philippines, but James Adomian was just spewing funny and ridiculous stuff. I couldn't stop laughing..
This guy is awesome. One of the few episodes that you can hear the guest *actually* making Keith laugh - its tough to make him laugh. And when Keith does laugh, it means the guest is extremely funny and talented.
The Michael Caine impression was really bang on too.