Thanks guys! It's definitely nicer on the snow than sitting on the trailer, haha.
That thing on the handlebars is a GPS unit I have. It's a Garmin Foretrex 101. It doesn't hold maps but it can give you a bunch of other info...max speed, moving avg speed, waypoints, etc. You can import the routes it plots into Google Earth to see where you were, when, and at what speed. Neat little thing for less than $100 a few years ago.