There have been some new changes to Twitter that impact how your existing page display will appear. A new header image options has been added (see our example from CCI here: http://twitter.com/CCIUpdate). Although this is not mandatory, it can enhance your brand and add more graphics to the page.  Follow this link for more information about the changes and iPad upgrades: http://www.convometrics.com/2012/09/18/twitter-adds-header-image-to-all-profiles/.