GameBanshee has interviewed Obsidian's Chris Avellone and Matt MacLean. While the interview is mostly about Alpha Protocol, Fallout: New Vegas is also mentioned a couple of times.

GB: During a recent interview, you stated that you, personally, were "all done" with Alpha Protocol. When did you actually switch gears to Fallout: New Vegas, and how difficult of a transition was it to go from modern espionage to the post-nuclear wasteland? Chris: Like almost all the designers, I've moved off Alpha Protocol. Switching gears from Unreal to the GECK has been painless. All the previous experience with Fallout back at Black Isle studios also made the transition easy as well - we got right back in the saddle, and off we go.
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