This poll suggests that AMLO has a slight edge over Calderon, even a little beyond the margin of error. It’s the first to be published (that I know of, since Reforma requires a subscription for their content) since the televised debates last week.
Here’s Bloomberg’s coverage.
Here’s the Milenio article in Spanish.
UPDATE: The poll by El Universal suggests that Calderon has a narrow lead. Just goes to show how subtle differences in question wording and order may have an effect on poll results.
El Universal published one yesterday. Calderón has the lead on that one, so who knows!
http://www.eluniversal.com.mx/notas/355038.html