Hi Joe,
I was able to replicate this behavior on the demo site by creating a child page and setting it's "Publish Mode" to "Mobile." The result is in a standard browser, the pagemenu isn't shown but the left column is shown. Ashian is using a RTL skin with the PageMenu in the right column so if he has page beneath the page he showed us that has it's "Publish Mode" set to "Mobile," the right pane will show up even if there are no other pages to show in the PageMenu or content in the right pane.
Unless someone removes them, you can see the behavior at http://demo.mojoportal.com/events.
Thanks,
Joe D.