Dropcam is, in my impression, one of the most underestimated US companies in Europe since the product/service is not available here. Their business model basically consists of selling you a camera (could be cheaper) but adding a subscription model to stream and/or store the cideo captured for home surveillance, for example. This is a great business in itself, but they are aiming for more - to become your "smart home hub" that can add apps and sensors of various kinds. I am waiting for a European launch or a European copycat. Where are the Rocket Internet guys when you really need them?