Pedantic, I know, but title sounds like you get a device that dual-boots into Android and Linux. By "optional", I presume that means at added cost. By "supports", I think that means you're on your own as to distro (though I suspect a device-specific distro would come out in short order). The $45 version only ships with 512mb RAM - I run servers without windowing environment in that space all the time, but perhaps one of the smarter Linux gurus can comment as to suitability for running XBMC, etc?