Welcome to this morning's edition of "First To Know," a series in which we keep you in the know on what's happening in the digital world.
Today, we're looking at three particularly interesting stories. Coin is a new credit-card-sized device that holds all your credit, debit, gift and membership cards digitally. In a landmark ruling after an 8-year battle, a New York judge ruled that Google Books' scanning of millions of books falls under fair use. And the PlayStation 4 went on sale at 12 a.m. ET on Friday across the United States. It's also now available to purchase online.
Check out the video above for more on these stories.
Image: Mashable, Christina Ascani