Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Nest Thermostat - New sleek Nest to turn up your savings
ioBroker - flexible and modular application for the IoT and Smarthome
Nest Hello - Nest's new smart doorbell with HD video monitoring
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
Arlo Smart Home - Home security made simple