For those who missed it, and that probably means most of you, APB was a MMO in the style of Grand Theft Auto or the first Saints Row game. It was destroyed in open beta by hackers and griefers, then the company who produced it fell apart a few days after release. Sometimes, dead games come back. Joystiq has the story.
Like too many games, APB had a lot of good ideas, but the execution sucked. Also, zero security against the unhealthy elements of our little community. Maybe this new version will fare better.