This could be bad for existing owners, since part of the Nest magic is tied to the internet. Honeywell would have a hard time forcing a product recall, but could force the servers to go down. Would impact the ability to control it remotely, and also impact the thermostats ability to know the weather outside and forecast.

Really enjoying my unit so far. It's self learning has worked out well, and it should help to save a decent bit this summer when the AC is in use.