This is a fascinating thought! It could send all the data to the cloud, but all those sensors going all the time would be a lot of constant data to send, and would use a lot of mobile data which would be unacceptable to many people (including probably the mobile networks). If it's running locally though, the data could we quickly analyzed and probably deleted, avoiding long term storage issues. There's got to be a lot of interesting things you could do with that kind of data
