The first issue of "Yappin with Yahn" from Valve Software has gone live. Here's the description for ya: In this edition, Yahn answers question about texture problems, BSP, Worldcraft's future, and creating a HINT brush. Cameo by Gary McTaggart to answer a question about the future of 3d acceleration.  Speaking of Valve employees also there is an interview with David Speyer of Valve talking about Worldcraft and TF2 over at Valvenews.