Platforms for the Internet of Things, 2015 edition

A discussion on one of the lists I follow covers the question of “platform” support for the Internet of Things. Since consumer IoT is a kind of squooshy market right now with rapid changes in prices and no one obvious choice for what technology to adopt, it’s worthwhile taking some kind of review of the landscape for 2015 and sort out what to watch for next year. This is organized by vendor, and loosely grouped so that similar systems are next to each other. »