Bypassing session integrity check

I've a PDA application that posts data to a RoR web app. But I don't
include a 'authenticity_token' field and the server is returning 'The
change you wanted was rejected'. Removing
'config.action_controller.session' from environment.rb doesn't seem to
work. Is there any way to tell RoR to ignore the session check for a set
of controller actions?

Thanks,
Mark

You can use the protect_from_forgery method,
found the answer here:
http://api.rubyonrails.org/classes/ActionController/RequestForgeryProtection/ClassMethods.html