Did Time Mag Cheat Rolling Stone (Or Just Scoop Them on Their Own Story)?

ROLLING STONE MAGAZINE did a huge story about Stanley McChrystal, the commander of allied forces in Afghanistan, and his criticism's of the Obama administration. As a result of the story, McChrystal tendered his resignation to the president - his remarks in the article, which he admits are accurate, could be considered as insubordinate.

But there is another controversy surrounding the story: Time magazine published the Rolling Stone story online in full pdf version nearly two days before Rolling Stone did - and nearly five days before the Rolling Stone print issue hit the street. Another site ran the pdfs as well but that page has since been removed.

Rolling Stone sent advance copies of the newest issue to media outlets before going to press - like many magazines do - as a way of drumming up publicity. They said that they did not give pdf versions to Time, nor did anyone from Time contact them for permission to run the pdfs online.

Was Time just doing good journalism by beating Rolling Stone to their own story? Or did Time violate Rolling Stone's copyright by printing pdfs without authorization?