Sick of your friends saying you look fat in those jeans? Apparently, NTT DoCoMo feels your pain and aims to swap out the peer criticism with smartphone objectivity. Shown off in advance of CEATEC Japan 2011 (an annual electronics trade show), the operator took the wraps off several mobile-based accessories, ranging from gamma ray and UV light monitoring phone cases to a breathalyzer-like add-on for measuring body fat (you paying attention, HTC Rhyme?). There were also a couple of applications on hand for