Fitbit is purchasing (almost all of) Coin, the payments startup that developed a universal credit card replacement. The world's biggest maker of wearable technology can now leverage Coin's know-how and integrate NFC-based commerce to its hardware. Fitbit has already said that there are "no plans" to integrate Coin's setup into the products it'll launch in 2016, so you can be damn sure it'll be there for 2017. It's not going to be a big leap for either party, as Coin was working on some form of payments watch earlier this year. At the time, it had signed up Atlas Wearables, Omate and Moov, as well as MasterCard to handle the processing.