In something of a surprise move (at least in regards to timing), Michael Powell announces his resignation as FCC Chairman. From the media ownership fiasco to Powell’s knee-jerk overreliance on deregulation as a general fix-all, Powell’s brief tenure probably isn’t going to go down as much other than an experiment gone awry, and further testament to the fact that deregulating markets doesn’t necessarily lead to increased competition — in fact, sometimes quite the opposite. Update: Stephen Labaton previews the post-Powell FCC.