Not content to stop at fitness bands and smartphones with heart monitors, Samsung today showed off a new prototype wrist monitor while announcing a new cloud-based health data service that aggregates all your readings from different devices. At an event in San Francisco, the Korean tech giant talked about its desire to create an open platform for digital health information that doctors, developers and patients can all take advantage of. Samsung Architecture for Multimodal Interactions (SAMI), will be a cloud-based open software platform, where a variety of devices and sensors can securely store data.