In the latest in patent infringing suits against Apple, iOS 6's Passbook is the target.

Apple Insider reports that Ameranth, which produces poker and restaurant software, claims that the ability to store movie and airline tickets and hotel reservations in Passbook infringes on patents that the company has filed between 1999 and 2005. GigaOM points out that Ameranth has filed similar suits against other companies this summer, and VentureBeat adds that Microsoft and Motorola hold a stake in the company.

Ameranth has a history of mostly focusing on enforcing its patents, but with actual products and that financial stake under its belt, they might be a bit more than an ordinary patent troll.