About two years ago Google's Nest subsidiary acquired Revolv. It was an acqui-hire - they did not want the customers or the products, they wanted the engineers. Revolv's main product was a $300 home automation hub that relied on cloud hosted servers for all its functionality.
Today, Nest announced that they would be turning off those servers, leaving revolv customers with a $300 brick. [vox.com] To make things worse, Revolv had promised their customers lifetime service. Revolv is still alive and well, it's just changed its name to Nest. So whose lifetime were they talking about?