Chalk up another casualty of the Hewlett-Packard/Compaq merger. For two years, Bruce Perens was an in-house evangelist for the Linux operating system at computer giant HP. He would go around extolling the virtues of the open source software to corporate clients, pointing out that it was secure, cheap and kept customers from being locked into proprietary systems like Sun Solaris or Microsoft Windows. In fact, it appears to have been his self-acknowledged baiting of Redmond that eventually did him in. Perens was canned by HP, which finds itself post-merger as the single biggest buyer of Windows for PCs and servers and thus, as the New York Times’ Steve Lohr put its, more dependent on Microsoft than ever. But don’t expect Perens to go quietly into that dark night. “I’m sorry that I had to leave HP, but I’m not going to shut up about my views,” he said. “I’m not just going to sit back and be a quiet engineer. I have a two-year-old son and I don’t want him to grow up in a world that is less free.”