I get creaking with my N9 also when squeezing it from left & right sides inwards, more prevelant towards the upper 1/3 of the body. N9 is sourced from Singapore and lives in HK... around 25C today.

I also noticed a small gap between top of glass and frame maybe 0.5mm (worried about it being a dust magnet). It is, however, flush to glass on the sides and bottom edges. Almost like the glass is too short for the frame. Perhaps this tolerance is needed to fit the unit into the body.

Anyone else have this?