The Wikileaks app promises direct access to confidential memos and other secret updates from Twitter or WikiLeaks website. It displays the information including cable gate, both the old and new documents. Plus you get the tweets and posts from Wikileaks hashtag # @ Wikileaks displayed in a simple interface. The app seems to focus mainly on Twitter (the first tab) and general news about Wikileaks (the second tab).
Download WikiLeaks App for iPhone, iPad and iPod touch [iTunes Link]