I think linux is on of the bigest advantages of curent readers, together with superb display and batery life. And its free as in bear (ads no license costs)....and free as in speech (which is better for the user, right, iRex ?
). Curent problems (lack of content, prize) ar more because the e-ink readers are not mainstream yet, not the OSS software. Simple more readers -> bigger series -> cheap readers -> more content
Windows on my (future
e-ink device ? NO THANKS