Planet Stuff via Amazon offers the Honeywell WiFi Thermostat, model no. RTH6580WF, for $83.99 with free shipping. That's $3 under our April mention and the lowest total price we've seen for this thermostat. (It's a current low by $9.) This thermostat can be viewed and controlled via a free app for iPhone, iPad, and Android, and features 7-day programming with four program periods per day, pre-programmed energy savings schedule, and universal compatibility.