I actually was the first one asking for a solution using cellular and was shut down by Ray telling me that it would be very difficult to get it to work with something like a gprs shield.
Weathermatic, Banyan Water, Hydropoint to list a few are using this technology I wish I knew how. Please let me know if any of you get OS working with cellular, I don’t know if this is any different https://store.particle.io/collections/frontpage to get it to work with OS