I find it interesting when words or objects of popular culture make their way into novels (I believe I posted on this the first time I saw Sheryl Crow’s name in a novel). I spotted a reference to iPods in Robert B. Parker’s Bad Business [pg 197], which was published in March of 2004.
“Vinnie put the shells on the coffee table and leaned the shotgun against the couch at the near end. Then he took an iPod and some earphones out and put them on the coffee table.”