Dear Infinite Playlist (and Janina), thank you for the recommendation. I can understand why this is your favourite book and since I was looking for a love story with happy ending it was almost a perfect match. Don't worry, the plan worked in the end ;) 
 I did like the love story, especially from the moment Nick calls his own cell phone, but the cussing was too much... even for me, a (proud) foulmouthed person myself :P I tried to keep count of how many times the characters use the word "fucking" or "fuck" and got lost after 10 pages or less. The English language is not that rich in cussing words (if you can be rich in that) and unfortunately you can't use "fucking" so many times in a 182-pages book and walk away unscathed (there are 135 f-words in the book, btw). 
 It's not realistic... and even if teenagers speak like that in the real world, I don't need to read it in a book. Everybody cusses; everybody uses the word "fuck" for time to time... The younger much more frequently than they should... but Nick, Norah and co. weren't talking as upper/middle-class teenagers going to study in Brown; they were rude, vulgar and so, so tasteless. Were they really from New Jersey? The way they talked reminded me of the TV serie The Wire. I don't think Nick and Norah were cops from Baltimore, weren't they? fO.o 
 I won't make any comment about the sexual content of the book. I'm a prude, I know, but normally I have no problem with sexually active teenagers, but (view spoiler)[the direction the scene in the Marriott Maquis' ice room took was a bit over-the-top for a YA book, I think (even if I liked it :P). (hide spoiler)] 
 Anyway, even though it's a great love story, could have been written a bit more careful. There are a couple of good quotes about life, universe and everything... The music is supposed to be a big theme in this book, but I didn't know most of the references or understand the whole punk stuff, so it wasn't that interesting. What can I do? I'm a moron in music, sorry :P 
 BTW, I do like the movie, although the story is quite... ok, a lot different... and I don't remember the people cussing so much in the movie fO.o