Thalmic Labs has developed Myo, a gesture control arm band that interprets electronic impulses of muscle actions to wirelessly control devices. They have an SDK/Framework for creating applications that can communicate with the armband. In addition to the SDK, Thalmic plans on soon releasing open source APIs to garner a community of developer support and interest.
While we'd like to think that the phrase "Internet of Things" means gazillions of things connected to the Internet, the truth is that many of them are not really full-blown Internet nodes with their own IP addresses. In fact, the IoT is spawning all sorts of interesting API communication models.