“Personal Audio LLC of Texas, who won a case against Apple on one of their patents back in July of this year is back in court,” Jack Purcher reports for Patently Apple.

The jury in the first trial sided with Personal Audio against Apple, but a post trial judgment ruled against their second key patent,” Purcher reports. “Personal Audio is back with a vengeance to prove that their second patent was indeed infringed by Apple by pointing to iOS and Apple’s own marketing regarding playlists for which they have no patents for, states the company.”

Purcher reports, “The lawsuit drags in the new iPhone 4S, iPod touch and the iOS 5 operating system which was just released.”

Much, much more in the full article here.

Related articles:
Apple wins court order limiting damages in Personal Audio ‘playlist’ case – July 30, 2011
After $8 million jury verdict against Apple, troll wants more and sues over iPhone 4 and iPad 2 – July 20, 2011
Eastern Texas court orders Apple to pay $8 million in patent trial over iPod playlists – July 9, 2011