We have just applied a "patch" to fix a bug encountered by some users with aLumia smartphonerunning Windows Phone 8.0. Specifically, the mobile version was not displayed correctly and the menu was hidden, as shown in the preview below.
Note: Microsoft has fixed this bug in Windows Phone 8.0 "Update 3" and phones with Windows Phone 8.1 are not affected.
The YellowBall team at your service!