We're also guessing some iOS 6 support is on-hand for this update.
And following the lead of other social networks like Path and Facebook, Twitter has also introduce the new "Header" photo feature, viewable on user's profile pages. This largely useless addition merely means more "self-expression" for individuals and "enhanced messaging opportunity" for brands. Brands and agencies can now add this image type to the growing list of media required to support social channels.