When Fitbit acquired indie smartwatch maker Pebble at the end of 2016, it was clear from the beginning that it would be the end of the line for Pebble devices. In fact, Fitibit didn't even acquire Pebble's hardware assets. A year later, Fitbit seems determined to let Pebble's fiercely loyal userbase down easy — and to convert as many of them as possible into users of the company's fledgling...