But OnePlus still only sells at most a few million units a year - since Oxygen OS is just an Android fork, its still Android, and you don't have the problem of marketshare adoption to attract app developers that any of the non-Android based mobile OSes would have. And thats why I said Plasma Mobile is most interesting, since its not for commercial purposes where success is measured in adoption. The Nexus phones and other devices that are rarely commercially available in stores sell fractions of the units that generic LG and Samsung phones on those shelves do. You can make a business selling a good Android phone out there, but for a mobile OS that needs a good chunk of market share to stay viable, limiting yourself to those seeking you out puts you at an insurmountable disadvantage to getting a foothold large enough to attract developers.