Rupert Murdoch demanded that Amazon turn over all Kindle users info. Amazon has yet to comply with Murdoch’s request.

This demand follows News Corp negotiating a larger share of revenue from Amazon sales–in which News Corp stated that content from the The Wall Street Journal would not be made available unless Amazon provides a more generous revenue share and more publisher-friendly policies.

“Kindle treats them as their subscribers, not as ours, and I think that will eventually cause a break with us.” – Murdoch