Today Square Enix released the English version of the FFXIII Tokyo Game Show trailer featuring both English voices and English gameplay. You can watch it here: http://www.gametrailers.com/video/tgs-09-final-fantasy/57151
The trailer also confirms the Spring 2010 release and shows a Playstation Network logo for the first time.
The trailer has been posted by all major gaming websites and also on the European and North American sites for Final Fantasy XIII.
I’ll update this post when there’s a download available