I just purchased (new) an E-PL7 as a backup for my aging E-PL6 body. It appears to function perfectly, but when powered off a slight clunking sound can be heard if the camera is lightly shaken along its top-to-bottom axis (and slightly less so side-to-side). With no lens mounted, I can see the sensor assembly shifting a millimeter or two as the source of the sound. When the power is on, all passive movement vanishes and the image stabilization system works as it should.
Is this normal, or should something be holding the sensor assembly more firmly in place when the camera is powered down? (The E-PL6 doesn't exhibit similar behavior, but it uses a different, less sophisticated 2-axis stabilization system.)
Olympus tech support says it's normal (unsurprisingly), while several Micro 4/3 forum members who own the camera initially said it was not (although others later confirmed that it was - apparently some people just don't notice stuff like that...).