Re: An option to turn them into security cameras would make this really popular
There are already ways to make a phone relay its camera to something else, so you could already configure that. It would involve some work on the system which takes the video from the phone and makes it useful, but that's the same problem you get with any other camera. The problem with a phone used for this purpose is that they're usually not so designed to be taped up outdoors. Even the ones sealed for water resistance aren't expecting long-term exposure. Anything on the outside of the building is likely to be exposed to sunlight, solar heating, cold not often seen indoors, and precipitation. The hardware may not enjoy those conditions, and at least two of them have been known to create battery problems.