Amazon's started offering it on some titles - https://www.amazon.com/gp/digital/ep-landing-page?ie=UTF8&*Version*=1&*entries*=0 https://www.amazon.com/gp/digita

Amazon's started offering it on some titles - https://www.amazon.com/gp/digital/ep-landing-page?ie=UTF8&*Version*=1&*entries*=0 https://www.amazon.com/gp/digital/ep-landing-page?ie=UTF8&*V... But it doesn't seem to have much support from the big publishers, who aren't exactly known for their customer friendliness.