I missed this on Thursday, not the least of which is because I had no idea they even did these Hangouts on Air. I was at work, anyway.
But here is Sean Punch and Steven Marsh talking about the GURPS line, for over an hour:
If you listen closely at the end with the what's coming up part, you will hear a totally blatant hint about my upcoming book, which I talked about here earlier this week.
Sean Punch did on his blog, too, mentioning that it is in production now.