Very interesting! Your data is a bit inaccurate, though, according to CNN's site - mostly tiny, insignificant map-shading errors. I corrected it, shaded it, and also did a map for the moderates:
Independents
Moderates
Montana was tied at >40% for the first map.
Also, here is a map of the independent vs. moderate vote:
In red-marked states, Kerry did better among independents than he did among moderates. Nevada was a tie.
You are right about Nevada, Kerry won that in the Independent vote, But not Wyoming.
