The NETMF blog is taking you in steps on how to make a bike computer. Everything is detailed and slow steps so it should be fun to follow.
This is what was available at the time this post was made:
http://blogs.msdn.com/b/netmfteam/archive/2010/05/25/bicycle-computer-1-introduction.aspx
http://blogs.msdn.com/b/netmfteam/archive/2010/05/25/bicycle-computer-2-getting-the-project-started.aspx
http://blogs.msdn.com/b/netmfteam/archive/2010/05/28/bicycle-computer-3-sensors-and-sensor-integration.aspx
http://blogs.msdn.com/b/netmfteam/archive/2010/06/03/bicycle-computer-4-ui-continued-fonts-and-touch.aspx
Also check here as new posts may have been added too http://blogs.msdn.com/b/netmfteam/