No Standard Menu Button In 3.0+ / How To Get Access To It

I made my app compatible with both pre and post 3.0. Before 3.0 most phones had menu buttons which led to settings or other menu options. Since 3.0+ the dev guide has depreciated the menu button so phones don't need it. ICS and JB don't use them.

So how do I let users access it? In Gingerbread a user can press the menu button and then select the "Settings" link. Everyone knows what I mean but I feel I need to explain it: here's the dev guide anyway.

So if one of my users is on a 3.0+ device how can I let them get access to the settings page? I don't want to use the Action Bar like the dev guide suggests. That's a huge UI change just for one settings page.

I mean it's just one page and changing my UI to add a settings imageview would change the overall layout of main.xml which at the moment is just how i want it.