Internet Explorer app switch
To help drive your existing site audience to your app, Internet Explorer 10 on Windows 8 has a new app switch button, which will let users know when an app is available for the site they are viewing. When users launch Internet Explorer from the Windows 8 Start screen to view a website that has an app in the Windows Store, they can tap or click the app switch button to go directly to the corresponding listing page in the Windows Store. (By the way, this only works when using the Metro-style browser that you launch from the Start screen, and is not available if you launch Internet Explorer from the Windows 8 desktop.)