E-books settlement talks advancing: sources | Reuters

Price different; also see Amazon.com trying to wring deep discounts from publishers (Seattle Times)

"While negotiations are still fluid, the settlement is expected to eliminate Apple's so-called "most favored nation" status, which had prevented the publishers from selling lower-priced e-books through rival retailers such as Amazon.com Inc (AMZN.O) or Barnes & Noble Inc (BKS.N), the people said.
The deal could also force a shift, at least temporarily, in pricing control from publishers to retailers, one of the people said."
[...]
When Apple entered the digital books market with its iPad in January 2010, Amazon had nearly 90 percent of the e-book market.
Amazon now has about 65 percent of the e-book market, while Barnes & Noble has 20 percent and Apple has 10 percent at most, according to Cowen & Co estimates.

E-books settlement talks advancing: sources | Reuters