Definitely neat sighting. Have many times have had crew to point out we wwould be landing parallel with another aircraft or point out interesting landmarks -- but a B2 is a steo above. There was a recent report of a pilot pointing out a space shuttle launch.
Appears yours was a PA announcement and not CH9 -- but you might want to check this out --
http://www.flyertalk.com/forum/unite...ad-merged.html