Nest's business model is to sell a product for a profit. From that perspective, it's the same as Dropcam. More than the business model though, Nest's goal see

Nest's business model is to sell a product for a profit. From that perspective, it's the same as Dropcam. More than the business model though, Nest's goal seems to be to use sensor data and usage patterns to provide home automation with as little management as possible. Dropcam is essentially just another sensor - they're already doing things like recognizing people in the video feed. It's a way to get more data into nest's algorithms, and to get sensors into more areas of your home.