True - I doubt that any of the hardware manufacturers for Android have the technology to top what Nokia did with Lumia 1020. Nokia is completely invested in camera unlike HTC, Samsung, Motorola etc.,
Samsung makes Android cameraphones as far as I know and they do it right IMHO. 41Mp are nice, I don't say anything (I had PureView 808 until I dropped and destroyed it), but it is not the most important thing in photography.
The only Android manufacturer that seems to care at all about camera quality is Sony, and even they haven't really put their full emphasis on that lately.