It's been just about a year since former Apple exec Tony Fadell unveiled his newest project, the Nest Learning Thermostat. At the time, it was notable for being the sexiest thermostat in the history of household automation, with WiFi connectivity, mobile apps and an iPod-like click wheel for adjusting the temperature. Today, Nest Labs announced the follow-up to that product, and while it boasts the same tricks as the original, it's noticeably slimmer and will work with a w
