“Even as Apple unveiled new partnerships with publishers focusing on ebooks and digital textbooks earlier this week, lawyers have amended a class-action lawsuit against Apple and five of the six big publishers accusing them of ‘deep antagonism’ toward Amazon and its pricing scheme,” Josh Ong reports for AppleInsider.

“Law firm Hagens Berman filed the original lawsuit last August on behalf of a group of consumers who allege Apple and most of the publishing industry colluded to introduce an agency e-book pricing model for the iBookstore to disrupt Amazon’s wholesale model,” Ong reports. “According to the complaint, following the release of the iPad and iBooks, the five publishers raised e-book prices by 30 to 50 percent and ‘completely changed the competitive pricing landscape that had existed for decades in the industry.'”

Ong reports, “The lawsuit is asking for ‘damages for the purchasers of e-books, an injunction against pricing e-books with the agency model and forfeiture of the illegal profits received by the defendants.'”

Tons more in the full article, including how the lawsuit draws upon Walter Isaacson’s biography on Steve Jobs by including an excerpt as supposed evidence of a price-fixing conspiracy, here.

[Thanks to MacDailyNews readers too numerous to mention individually for the heads up.]