Looks like this lawsuit is finally wrapping up.
According to the letter, with these additional settlements the fund for payments to customers who purchased qualifying ebooks is now $162.25 million. Anyone who purchased ebooks from the iBookstore between April 1, 2010 and May 21, 2012 is eligible to receive a payment from this fund upon court approval of the settlement. That is, almost anyone: because of the complexity of the case and complex mix of the various parties involved in it, only individuals who are residents of the United States (including five territories and the District of Columbia) are eligible for payments; libraries, government agencies, and corporations, among others, are excluded, as well as those who only obtained free books or gifts from the iBookstore. In addition, residents of Minnesota, while included among those who are eligible, are subject to different terms in the settlement.
There’s a pretty comprehensive FAQ on the settlement here.