You can see the routes the cyclists are taking on the map, including important points like the beginnings and ends of stages. Weather forecasts, distances and times are provided for each stage, and results are updated in their own tab as they come in.
Microsoft has also put an elevation profile over the map. Just move your mouse along a route to see where the climbs and falls are.
Most techies have made Google Maps their default destination for maps and directions, but Microsoft's Bing Maps has tried to challenge Google by building specialized apps and tools for events and interests. For example, Bing has given users access to Foursquare data, and added an app that grants the ability to stargaze from street level. Mashable launched the Local Twitter Trends app for Bing Maps about a month ago.
Do these special apps have a shot at drawing you away from Google?