I'm happy for Nest but sad for myself, given the smoke detector was my Christmas gift last year.
Previously I would look to YouTube as an acquisition done right. But after the kerfuffle around G+ integration, I no longer feel that way.
If I have to sign in with my G+ account to manage my smoke alarm, it's going directly into the rubbish bin.
If Apple had bought Nest, on the other hand, I'd feel very differently.