Good news! Podcasting is now legal! (Wait–what?)

Good news! Podcasting is now legal! (Wait–what?)
No more do podcasters around the planet have to worry about unexpectedly being sued up the ying-yang. This requires some explanation. A company called Personal Audio has been targeting podcasters (CBS and Adam Corolla, to name just two), saying that it owned the patent to the concept and technology underlying podcasting. Bloody troll. As of this week, podcasting is completely and unambiguously legal. This is the very definition of a patent troll. We’re going to sue you–unless you want to settle out of court.”
Most podcasters chose to settle rather than be dragged into a long and expensive court battle. This means that was can all podcast without fear. Fortunately, there were appeals which went against the company. But the Court rejected Personal Audio’s petition, which means the company is out of options. Personal Audio’s tactic was to call up podcasters and say “Hey, you’re using our intellectual property and are illegally using our patents. This is how Personal Audio made its money. It was Personal Audio’s turn to appeal, which they did, again and again. About time. Some chose to fight back and ended up losing lower court cases to Personal Audio. They maintained that anyone who got into podcasting owed them a license fee. All patents claimed by Personal Audio have been invalidated. Each time, though, they lost, until the only thing to do was take it to the US Supreme Court.