Have you checked out the Windows Store apps Dev Center lately?
It’s been filled with excellent resources for learning about and developing Windows Store apps. From code, to design guidelines, it’s chuck full of what you need to develop Windows Store Apps.
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With the Hub control you can create a hub page.
This pattern is best for apps with large content collections or many distinct sections of content for a user to explore.
The essence of hub design is the separation of content into different sections and different levels of detail. Hub pages are the user's entry point to the app. Here content is displayed in a horizontally or vertically panning view that enables users to get a glimpse of what's new and available. The hub consists of different categories of content, each of which maps to the app's section pages. Each section should bubble up content or functionality. The hub should offer a lot of visual variety, engage users, and draw them in to different parts of the app.
Windows 8.1 includes the new Back button control. The BackButton provides a way for you to add backward navigation to your app.
<button data-win-control="WinJS.UI.BackButton" >button>
You don't have to write any code. The BackButton automatically checks the navigation stack to determine whether the user can navigate backwards. If there is nothing to navigate back to, the button disables itself. When the user clicks the button or uses keyboard shortcuts (such as Alt+Left or the BrowserBack keys), it automatically calls the WinJS.Navigation.back function to navigate backwards.
Windows 8.1, a free upgrade for Windows 8 users, has features to make it more familiar to users of previous versions of Windows plus new features and functionality.
The Windows 8.1 update was released last Thursday, October 17, 2013.
It is a free download available from the Windows Store.