If you're traveling his Holiday Season (or any other time) and need to share your location with friends and family, give Glympse a try. Glympse is a free app for your Windows Phone that sends a link with your ongoing location to anyone via email or text message.
The link will show your real-time position, your speed (optional so you won't get in trouble with the parents), a brief message, your destination and time of arrival. Glympse will only share your location for a time period that you establish.
Glympse is a mango app that has fast app switching and Live Tile support. The application has pages for your Glympse History and Favorite destinations. We think Glympse will be an easy way to let your family know how far away you are from Grandma's House or help guide out of town friends to your location.
Glympse is a free mango app that you can find here at the Windows Phone Marketplace.