While browsing the museum bookstore I came across a novel named "ttyl."
What makes this novel interesting is that it's written completely as an instant message transcript between the characters. The author uses all the slang you would expect, and as far as I can tell, you don't even know the names of the characters, you just know their screen names.
I give the author real credit for being creative.
Check out what amazon says: http://tinyurl.com/cef8p