Hello,
I'be been working with the NXT Lego Robotics and diamondback build of ROS.
I was following the tutorials on
http://www.ros.org/wiki/nxt_ros/Tutorials/Getting%20started

After getting repeated errors from the 'name' when I went to rosrun
robot.launch, and further digging into the API, I found that the correct
order for robot.yaml file is Type, Port, Frequency, Name and the Frame.
(From: http://www.ros.org/wiki/nxt_ros)
As opposed to what is listed in the tutorial.

Wanted to give a heads up for others trying the tutorial.

Sincerely,
Jessica

-- Jessica M. Hatch
Group 65
Summer Research Program
Office: B3-323
Phone: ex. 4973
Jessica.hatch@ll.mit.edu