The assembling of the FEZ mini kit is very simple and takes little time.
Programming a line follower with NETMF and C # is also simple.
I have a small movie of my first results
One problem is that the analog sensor voltage of 5 volts gain of the controller board RBX-168.
An analog input voltage is 3.3 volts maximum, so not the full range can be measured. For this I have no real solution, a voltage divider is obvious but the controller board must be modified. In my program I have the threshold value of 70% dispositions.