Some quick thoughts:
-not too many surprises here. Florence + the Machine and LMFAO nominated in Pop Duo/Group Performance vocal certainly is one.
-Pop Solo record: If Adele doesn't win then why bother giving out awards to artists? Just send the hardware over to the engineers and producers who made the other robots in the category what they are.
-My favourite category: Best Score Soundtrack For Visual Media, with Tintin, Hugo, Girl With the Dragon Tattoo, Dark Knight Rises, The Artist, and popular indie video game Journey! I don't recall video games ever being nominated in the past, but I suppose that's why the category title was given its now inclusive title.
-What's up with Spoken Word? I think audiobooks should be split off into their own category.
-Mumford & Sons nominated under Americana? Ironic, no?
-John Adams nominated for Orchestral performance... the classical categories always strike me as odd because it's all music composed by people who have, by and large, passed on from this mortal coil. It's a stark juxtaposition to the top/highlighted categories which all emphasize newness and youth and make up the televised ceremony.