Nokia Lumia 820 - What is the Nokia Accessories application on my Nokia Lumia with Windows Phone 8?

The Nokia Accessories application (Settings > accessories) provides access to status information for most important accessories and to full accessories settings, Nokia support pages, as well as information about availability of new software updates for accessories. The application works on Nokia Lumia with Windows Phone 8 that supports NFC.   In the accessories application you are also able to configure which applications are launched when you tap a Nokia wireless charging stand with the phone.