When one has an open sourced project like this, it makes sense to get as many people pitching in as possible. This provides diverse perspectives and speeds up the development process as well, leading to a better device getting into the hands of the user faster. Crowdsourcing hardware might be hard, as not everyone has access to a work bench or the large time chunks it demands. Software, however is more accessible, requiring only a charge laptop, and arduino and the sensor breakout. The hardware needs to work reliably and capture a physiological reading sufficiently well, before one can even think about testing various algorithms. (sub goal – make reliable housing)

Hence, goal – build atleast 3-4 prototypes and reach out to people who would be interested in testing device out. Is this the seed for a “developer testing program” of an open sourced project?