I have installed the plugin, and i was happy since it worked directly but when i examined more in detail i concluded i think a bug. 

Joomla 2.5 with  mx_joofree9 - Default template
i use the navigation menu and use Text Separator fields to create submenus, on my pc this works ok, but on my mobile the seperators are shown but the menu entrys that are beneath them are not shown and not selectable. The seperators are shown as non clickable. 

did i make a error in the setup  ?

Well someone should check it at their configurations. I didn't meet such problem in a case like yours..

I have also tried a samsung tablet with dolphin browser. There i see more details like my banner and so on, but also here i have the situation the menu entry's that are used as separator and the menu items beneath are not visible so the effect is similar.

i will also do some testing with another template to find out. I have tested them and my conclusion is : the menu navigation bar seems something special since it is not shown in another templates. Maybe it has something to do with the location of the navigation bar. I am not sure about this.

All help welcome