There's a Warren Spector and the Thief 3 team chat log on Thief Underground (seems Planet Thief is taken). The log is from the online chat with some of the folks at ION Austin, including Warren Spector, Thief 3 project Director Randy Smith, and more of the team at work on creating the next installment in the stealthy series of Thief games begun by Looking Glass Studios. If slogging through the log daunts you, there's a Thief 3 chat summary on GameSpyDaily.