Filed under: Robots Heads-up Pittsburgh residents and robot lovers across the universe: an all new exhibition is coming to the Steel City next year, and it's got high, high hopes. The $3.4 million display, which is slated to be "permanent," will be housed in the Carnegie Science Center and go by the not-at-all-puzzling title of "roboworld." The installation is expected to house an "array of mechanized devices," and given that it's being billed as the "largest and most comprehensive nationwide on robotics," we'd say it's got a lot to live up to. Of course, we'll be utterly shocked if it even compares to the now-closed Rob