The first iPhone 4 class action lawsuit has been filed in the U.S. District Court for the District of Maryland and, as expected, it focuses on the phone’s reception issues. Since the record-breaking launch of Apple’s latest gadget – 1.7 million were sold during its opening weekend alone – there have been scores of complaints about the device’s antenna design. Holding the phone in a particular spot leads to signal loss and dropped calls, as many new iPhone owners soon unhappily discovered. Apple’s only suggestion to its legions of loyal customers? Either don’t hold the phone that way or buy one of its $30 rubber bumpers.