Did you see the article on SolidSmack in which Spire Starter client, Core, was featured? Check it out if you're interested in learning the fascinating lessons they garnered the hard way. They built a hand-held device -- with some lovely lit elements -- which trains people to meditate more effectively and regularly.
Engineering dry electrodes, the surprising difficulties of working with real wood in mass production and millimeter-level ergonomics design were all discussed.
You can read the full article on SolidSmack here:
Or watch the video interviews here: