1up is carrying an interview from the latest CGW, talking with David Speyrer (Half-Life 2: Episode Two Project lead) about what we can expect in the next episodic content release. Typically, Valve is not exactly forthcoming with information on the title, which is expected around Christmas. Just the same, Speyrer has some interesting things to say about Valve's design process. From the article: "It's cool to realize that so many of the elements that we take for granted today, like the gravity gun or our companion A.I., were risky R&D projects during the development of Half-Life 2 or Episode One. Continuing at that rate as we release more episodes is pretty exciting for us as designers, and for our customers. We'll bring many elements from Episode One forward into Episode Two, but we expect to use dynamic scripted sequences extensively. They allow close interaction between NPCs during combat--such as Alyx wrestling with zombies in Episode One--and because they happen spontaneously, every player will see different interactions at different moments in the game."