I'm not sold on why Internet of Things technologies need a distributed ledger system. Devices already upload data streams to predesignated servers, but why would it need a distributed ledger system? Distributed ledger systems are good for certain things, but not everything. This is something we've been seeing quite often - blockchain technology "companies" trying to blockchain everything. Don't be surprised when these "blockchain" companies that promise to be the solution to X problem in Y industry screw investors over and fail to provide viable products as promised.