A Barnes & Noble Nook e-book reader, right, and the Amazon Kindle. A federal judge has ruled that Apple conspired to raise the retail prices of e-books in violation of antitrust law, and called for a trial on damages. Photograph: Daniel Acker/Bloomberg.

A federal judge has ruled that Apple conspired to raise the retail prices of e-books in violation of antitrust law, and called for a trial on damages(...)

Apple is going to trial alone after five US publishers agreed to eliminate prohibitions on ebook wholesale discounts. Photograph: Scott Eells/Bloomberg

Apple goes to trial tomorrow in the US over allegations by federal and state authorities that it conspired with publishers to raise the price of ebook(...)