Steven Sinofsky in his last memo before leaving Microsoft:

With the Store, Internet Explorer, Outlook.com, SkyDrive and more, each of which lead the way, this experience is connected to amazing cloud services.

"Each of which lead the way" … which way? To what? It sounds like he's saying they're leading the way in the marketplace, but clearly they're not. The only kind interpretation I can think of is that it leads the way to Microsoft's future.