Updated! LANGUAGE TAG REGISTRATION FORM : es-americas

[Michael Everson]

Then I maintain that no one has listed a set of coherent features 
setting "es-americas" off from European or Philippine Spanish in any 
way that enables one to identify "American" Spanish in any linguistic 
way whatsoever.

Seseo-thetheo does not do it; seseo is found in Spain. Pronominal use 
doesn't either.

Perhaps the answer is to get a 3166 entity for "Western Hemisphere".

And for the record, I think that "sgn" is a different case entirely.
-- 
Michael Everson *** Everson Typography *** http://www.evertype.com