As I mentioned in my last comment in the Wanderers Responsive blog post, I was thinking it would be a wise idea to have a module position in the very top of the responsive view for a fb login button while logged off, and for notifications while logged on. You can see how I did it on statusselect.com either by visiting the site in responsive mode, or by looking at the screenshots below.
I just noticed that my attached screenshots cant be resized in komento, so the designers can probably not see them. So I attached them here for reference.
P.S. you gotta fix your Z-Index for .nav-site here on stackideas.com, as the image pop up(fancybox) here on the forum gets cut off on the top.... so scroll down a bit when you open the screenshots to reveal the top of the image.