NRE costs on a phone are easily measured in the $Millions. Your niche has to either (a) have enough volume to dilute those costs; or (b) be willing to pay a lot more per unit to cover them.

It's not a "bad thing" about HN or American perceptions -- it's economic reality: it just isn't cost effective for the big incumbents to pursue, and it's (likely) beyond the scope of a grass-roots, Kickstarter-style effort.