I think we can continue to contribute usefully to the community by demonstrating various sensors and actuators on various platforms. As a community of bloggers we might stimulate introduction of new devices, which could generate enough data for input into pattern recognition algorithms.
As an analogy, consider two of Google's most successful applications: Blogger and You Tube. Blogger is self-publishing and You Tube is self-broadcasting. How can we create a platform for self-implementation of health and fitness devices?
The analogy is quite appropriate when you see how Blogger and You Tube have overcome the high cost and technical ramp up of the old models of print publishing and video broadcasting. Health and fitness devices are currently expensive and require extensive technical skills. How can we make the start-up easier for others who want to build new devices?