Last modified: 2012-09-27 07:56:10 UTC
From : http://fr.wikipedia.org/wiki/Aide:Livres/Problèmes#Erreur_de_langue_lors_de_la_lecture_en_synth.C3.A8se_vocale_d.27un_article_au_format_ePUB A contributor points out that the language of books in ePub format is always 'en'. see the dc tag : <dc:language>en</dc:language> in content.opf iPad uses this tag to choose the language of the Speech synthesis. This tag should be the wiki language.
Thanks for pointing out this issue - I fixed it. The change will be live after the next update probably next week