There is a now a novel featuring two balloon fetishists as the main characters. It is entitled "Blowing It!" and you can read more about it at this blog.
I wouldn't say that this book represents globophilia coming into the mainstream, but it is an interesting turn of events, and probably one that was inevitable. After all, there have been many balloon stories published on the 'Net over the years, and there was one guy (I assume a guy, though the author is just JC Fetish) who did a balloon fetish chapter in something called the "Book of Fetishes" (although I found his understanding of balloon fetishes, and the origins of fetishes in general, profoundly lacking).
This book was written pseudonymously, by someone who calls himself Tim Popper (Timid Popper in the forums where he, occasionally, posts). It's not a long book at 132 pages, but it seems to be just long enough for the story. I think it's worth a look.
If you like it, do the author a favor and rate it on Amazon or at least post a comment in his blog. Being an author, especially in a narrow niche like this one, can be really lonely. It's like sending your baby out into the world and holding your breath to see what the world thinks.
Even if you don't like it, give him some feedback. Maybe he'll write more.
(And by the way, I've noticed that none of you has commented on this blog either. What does a guy have to do, post something really insulting? Just sayin'!)