[kryptiskt]

There's no safety going with products from a major company. They pivot all the time, not least Google. The only benefit is that one might get a refund when they do something egregious.

And in this case, Google just gave all their customers using the Nest API the finger. How is it safe to trust them going forward?

[MichaelApproved]

That's why I specifically said "made by a single company", not "made for a single company". Products using the Nest API were "made for".

[2Ccltvcm]

Irrelevant because you will always get screwed unless the company has a huge track record in backwards compatibility and very conservative slow changing management.

Get open source hardware and software that you can maintain yourself or suck it up and cough up the dough.