If you have any thoughts as to the function of any of these, please share.
Click on the image at right for a larger view with comments.
So many of these images look like variations of the same base - I'm going to take a guess and say that these may be images of some of the robot challenges mentioned in the NXT press release (18 of them). It looks like after the base is designed, the sensors are attached in various configurations to change the function of the robot.
This may be the NXT equivalent to the RIS Roverbot.