Nook has a robust spanish language ebook section...
http://www.barnesandnoble.com/b/nook...panol/_/N-1p5v
Pretty much a necessity as there are more Spanish speakers in the US than in Spain.
(54m vs 47M)
And those are just the ones the census counts.
Nook did all the right things needed to succeed...
...they just did them poorly.