Back in stock. Amazon offers the Ecobee3 WiFi Smart Thermostat w/ Sensor for a low $199.00 plus Free Shipping. You get $50 off the retail price.

The Ecobee is a smart thermostat that is designed to control the thermostat for you. It can turn on the heating or cooling depending on your home's unique energy profile and the weather outside. It also features a smartphone app that allows you to access its controls remotely. What makes this Ecobee different from the Nest is that the remote temperature sensors (sold separately) can record temps in multiple locations. We have used this with much success in a nursery.