One of the more interesting features of Windows Phone 8 is its Proximity Framework for Near-field communications (NFC). Both Nokia and Microsoft have heavily invested in this area. The Proximity API provides you the controls needed to innovate on NFC technology, but at the moment Windows Phone SDK default emulator does not simulate NFC. That means you have to use real WP8 devices to test and debug NFC-related features. If you’re developing a feature to be used between NFC-enabled devices, you’ll need to have at least two devices in hand. In addition, there are often physical movements required to perform NFC interactions while debugging.