#NowTrending: This Week’s MedTech News »

What's in a FitBit? controversy, it turns out. Photo via FitBit Flex wiki. We bring you this week's healthcare and medtech trends, from Boston and beyond: 1. Santa Claus Came to Town... With FitBits FitBit's sales numbers jumped this season as people rushed to buy the newest version of the activity tracker…