What you've said is funny because your words could just as easily have come from a Windows 8 PR release. They love tasks! They're all about them! Have you used Metro? The main screen isn't just for launching applications. Tiles can be simple app-openers, or they can display information, or they can link to "hubs", or they can be file/website shortcuts. And then, within individual apps or hubs, the contracts system allows fluid movement and interaction between different apps and hubs. The Metro model is the very opposite of artificial data firewalls.