None if they don't include content decryption. If they did they would be in violation of the DMCA act.Here are my questions: what legal ramifications, if any, would this company face?
Too small of one to survive.What would its market be?
Absolutely, driver models for both OS's are open for development and well documented. You just wouldn't have any DRM playback just like older video cards that do not have DRM protected content support still can be used in both OS's.Could there be any way to write drivers for Microsoft Windows or Apple OSX, which have married themselves to DRM?
Wouldn't need to be, but having no DRM playback would be a stroke in the minus column for other OS's.Would its marketshare be strictly limited to Linux and Unix systems?