This should surprise absolutely no one. After the way Google utterly fucked its Revolv customers who'd sunk hundreds if not thousands of dollars into suddenly-

This should surprise absolutely no one. After the way Google utterly fucked its Revolv customers who'd sunk hundreds if not thousands of dollars into suddenly-useless hardware, you can rest assured Google will happily shut down any product or feature the very instant it stops making money. They have no legal obligation to not behave reprehensibly so that's just what they'll do.