Digital | ShopTalk New Orleans’s WWL Introduces Mardi Gras App By Andrew Gauthier on Feb. 11, 2011 - 1:29 PM WWL, along with New Orleans media company Zehnder Communications, has unveiled a new mobile app for Mardi Gras revelers. The Belo-owned CBS-affiliate teamed with Zehnder to create a free app (now available on iTunes and the Androi ...