Good afternoon, everyone. It's been a very busy and exciting time at Apple and I'd like to review some of the highlights of our June quarter. We hosted our best ever Worldwide Developer's Conference last month with over 20 million people from around the world watching our keynote session, which is the a record. We've had overwhelming response from customers and developers to the new features we previewed in OS X Yosemite and iOS 8. Yosemite has been redesigned with a fresh look and powerful new apps and iOS 8 is the biggest release since the launch of the App Store. With powerful continuity features, these upcoming releases will allow Macs and iOS devices to work together in even smarter ways.
Customers can start on activity like writing an email on one device and pa** it to another, picking up where they left off without missing a beat. They will even be able to make and receive iPhone calls on their Mac with just a click. These are features that only Apple can deliver. With iOS 8, we have opened over 4000 APIs providing more flexibility and opportunity for developers than ever before. iOS 8 provides developers with amazing new frameworks, enables wide use of Touch ID to securely authenticate users within apps and lets developers further customize the user experience with major extensibility features such as third-party keyboards.
We have also introduced Swift, an innovative new programming language for both iOS and OS X. Swift is the result of the latest research on programming languages, combined with decades of experience within building Apple platforms. It makes writing code interactive and fun, eliminates entire cla**es of unsafe code and generates apps that run lightning fast. It's easy to learn, allowing even more people to dream big and create whole new categories of apps. We believe our new OS releases, combined with Swift will result in a huge leap forward for the Apple ecosystem and we can't wait to what developers will create with Yosemite, iOS 8 and Swift.
When we introduced iOS 7 years ago, it was a revolutionary operating system for iPhone. Over the years we've extended it to the iPod family with iPod Touch and later to a tablet form factor with iPad. An explosion of apps, accessories and services for these devices has created an incredibly vibrant ecosystem. We're extending iOS in even more dimensions as customers around the world make iPhones and iPads an essential part of their lives, at home, at school, at work and on the go. We're putting a huge effort into delivering the best experience to our customers wherever they use iOS. That includes a safe and intuitive user interface for driving, called CarPlay, which is being integrated by 29 major car brands including Audi, BMW, Ford, General Motors, Honda, Hyundai, Mercedes, Toyota and Volvo; and after-market systems like Pioneer and Alpine.
We've created a new tool for developers called HealthKit, which allows health and fitness apps work to together and empowers customers to choose what health data they share. We're taking the first steps in this area in collaboration with the Mayo clinic, whose new apps can automatically receive data from a blood pressure app, for example and share it with a physician, or a nutrition app can inform fitness apps how many calories are being consumed each day. Our ARM health app will provide an easy to read dashboard of all health and fitness data.
We're enabling new ways to control light and doors and thermostats and other connected devices around the house using Siri with the HomeKit feature of iOS 8. And in the Enterprise, we are including new security, productivity and device management features in iOS 8. We forged a relationship with IBM to deliver a new cla** of mobile business solutions to enterprise customers around the world. We are working together to provide companies access to the power of Big Data an*lytics, right on every employee's iPhone or iPad. Using Swift, we will collaborate to bring over 100 Mobile First apps to enterprise clients, each addressing a specific industry need or opportunity.