We generally try to be thoughtful about which features we add to our Device OS because more features means more flash and RAM used by the system and less resources available to your application. Since the primary role of Bluetooth in Particle Mesh is for device setup and diagnostics, we don’t plan to support generalized and broad Bluetooth functionality when we ship. Do you have a specific use case you can share? We’re always listening and take input to heart. It may be possible that what we’re planning to have at ship overlaps with your logging use case, while not requiring the full peripheral implementation.