At its Worldwide Developers Conference in San Francisco, Apple introduced new versions of both its operating systems. On the desktop side, it unveiled OS X 10.10 Yosemite, and on the mobile side, we got to see iOS 8. Whilst over the past few years features from one operating system have reached the other, and vice versa, the two systems have always remained different. You do something on one device, and when you’re finished with that you pick up another device and do something else. No matter how similar the experiences became, there was always an odd jump between OS X and iOS.