Tim Cook gave a rare public interview on Monday night at the Wall Street Journal’s new tech conference, WSJD. The Apple CEO touched on a range of topics, including Apple Pay’s success, a big potential partnership, why the iPod classic was discontinued, and more.

Here are the biggest takeaways from Cook’s comments:

Snapchat is currently in talks with investors over a round of funding that could value the company at a mind-blowing $10 billion, according to sources for Bloomberg. That’s a little over half the $19 billion Facebook paid for WhatsApp, but double the $5 billion market cap currently held by BlackBerry.

Russian billionaire Alisher Usmanov has revealed that he recently spent $100 million on Apple shares in anticipation that they will rebound. The 59-year-old believes that Apple is a “very promising” investment, despite the current share price being almost 40% off its peak last September.

We’re still a few months away from Apple’s new iPhone unveiling, but that hasn’t stopped a number of Chinese retailers from selling the device in advance. They’re using the mockup pictures that have been circulating for weeks to make a quick buck from the hotly-anticipated handset, with some asking for as much as $8,600 a piece.

Following that questionable leak from Case-Mate last week, another iPhone 5 case has emerged that reinforces rumors of a device with a significantly larger display than that of the iPhone 4, coupled with a thinner, tapered design.