NFC Toolkit: make WiFi connection
Friends who enter your house don't need your WiFi password, just scan the tag next to the door and establish a connection.
Mark Wesley commented
This is an excellent idea, I already use it for Android. Be nice to have it for Windows phone.
Wonderfull idea. Wanted this nyself to
thank you for this suggestion. We will have to check if that is possible with the current version of Windows Phone