In a post on the Bing blog today Stephanie Horstmanshof announced the introduction of an easy way to download the Bing Homepage Image of the day. Check out that little download icon on the bottom right of the home page today.
Pradeep spotted that you from the Bing app on Windows 8, you can set the image of the day to be your lock screen
The download icon doesn't appear on the Bing page I see. Not that it matters... with Firefox: Tools/Page Info/Media/select/Save As....
Why do we have to login to a Facebook account to download? I don't have one, and don't expect too. Why not just let us use our Microsoft Account login?