The GRE Literature is a horrific exam because no matter how much you rehearse, it still catches you off-guard in some way or other. As other users have mentioned, the exam is now skewed heavily towards interpretation rather than identification, although learning your IDs will still help in the long run.
I personally think it's rather cruel that the official tests the ETS has released (1989, 1995, 1999, and 2010) have chunks of questions that have nothing but identification but then give us exams this year that basically have passage after passage of comprehension questions with an ID or two scattered throughout. I'd been taught to do "two passes" - one simply getting through all the ID questions which are supposed to be "easy" points, and one where you're really buckling down on comprehension questions. The September exam (and, from what I gather, the October exam as well) was nothing like this since IDs were attached to comprehension questions.
Princeton Review's guide no longer has a strong bearing on this exam, and neither do the comments that you should spend the majority of your time learning IDs. IDs should by no means be neglected, but what everyone (both online and in real life) advised me to only brush over - reading comp. - is the one thing that shouldn't be overlooked. Learning how to read quickly and developing an instinct for spotting the "correct" answer in reading comp. will take you just as far as learning IDs. Perhaps this is a skill that prospective grad students are expected to have, but guides (and word-of-mouth advice) should focus on acknowledging the large amount of comprehension questions that are now on the exam. The reading comp. is an onslaught, and it wittles away at anyone's concentration after the first two hours.
In any case, don't worry too much about your score! What's done is done and you've survived a really tough exam that grad students and Professors still shiver over...give yourself a pat on the back and move on.