I had my 7130e replaced by Sprint yesterday for a warranty issue. The replacement (new) seems to be of a better build quality. The handset does not "creak", the keypad and trackwheel are very tight (not wobbly like my previous one), and the plastic seems to be more of a matte finish rather than shiny black.

Hardware number seems to be the same, but I wonder if RIM is building a better 7130 now?