A reader tipped us off that the NYPD had set up one of their Skywatch contraptions on Myrtle Avenue at Carlton Avenue yesterday so we swung by this morning to check it out. According to the cops on location, there are now more than 30 of these things in rotation and this one is expected to be there for a couple of weeks. Maybe they should have parked it at Clinton and Greene though: We hear there was a drive-by shooting there last night.