i'm attempting to build one based on hacker-ish, somewhat collaborative principles. its slow going, though, because it at least partly involves steel manufacture, as well as electronics design.
its an interesting prospect, since the niche isn't huge, but it has potential, and because the margins on some of the things i'm looking to produce will likely be thin, at least to start. definitely different from how something like a web app works.
its an interesting prospect, since the niche isn't huge, but it has potential, and because the margins on some of the things i'm looking to produce will likely be thin, at least to start. definitely different from how something like a web app works.