Apple's big kick off to its Worldwide Developers Conference has drawn to a close, and while our heads are still spinning, there is a lot of news to parse following one of Apple's most prolific mornings yet. Having previously used WWDC as the venue to announce new versions of iOS and OS X for release in early beta form, this is the first WWDC with the Apple Watch thrown into the mix. As a result, new features, improvements to existing ones and whole new revisions of mobile operating systems were being released at breakneck speed. It's enough to make your head spin.