It works just fine. I can navigate when my form is in view mode and not edit mode.
I am, however, trying to get a popup label to show when the icon is in DisplayMode that explains you can't navigate until you cancel or save your changes. However, I cannot get it to work. I created a label to see if I can find out what is going on and the label is not working so I'm sure there is something wrong with my formula, but I can't see what it is.