Yes I noticed that too. I guess they have some icons set up for portrait mode but its not properly working. The desktop, widgets, and apps dont support it. There are ways to force it into portrait mode but it doesnt look right because the resolution is the opposite. Once Nokia changes it so the home screen and widgets can change resolution when the screen is rotated, it should work successfully. FYI there is also a portrait dialer in that theme folder. I guessing Nokia has prepared some files for portrait mode but it isnt fully implemented. But these files suggest that it will be available in a later update