Here is a round up of various P1 miscellania:
Josh and Bracey are interviewed on a Slice of SciFi here (I have to admit I've not had time to listen to this).
There's a Twitter based campaign to get Nathan Fillon to do a cameo on P1. This would be beyond amazing.
There's also a Twitter based competition which would let you name your own character on P1.
This is a great interview with Josh Bernhard with a pretty interesting comment about an 'episode 7'. You can digg it, if that's your thing, I believe it's got to the front page (I signed into Digg for the first time in 2 years just to Digg this).