Honestly, I've been so focused on vocab, reading and listening that explicit JLPT2 study has sort of fallen by the wayside. I use the 完全マスター文法 book a lot still, but can't say I'm explicitly studying for December.
I've been talking with a few Japanese friends recently, and while I think it's valuable, I'm frustrated most of the time by my inability to follow the flow of conversation. I feel like I know a lot, but I know it sloooowly; it doesn't pop immediately into my head. So I'm focusing on reading + listening. Lots of NHK - NHKジャーナル, accompanied by lots of pre-reading on the site. Running through K-On! with Japanese subtitles (and Subs2SRS for vocab import), and watching lots of アニメ on CrunchyRoll sans subs.
Also trying to be smarter about my use of Anki these days by not adding arbitrary words each day to my study load. So I developed a new Anki strategy for loading vocab:
(1) Change Rikaisama settings to save the vocab for a specific article (news article, something on Wired or Nanapi, etc.) to a separate Rikaisama file.
(2) Import the words (w/ a custom tag) to Anki.
(3) Set my daily New Word Count in my Anki deck to 0.
(4) Review my old words for the day in Anki.
(5) Review any words I missed.
(6) Create a Cram deck to study the new words I've imported from the article. I make sure the "Reschedule cards based on this deck" option is selected so that these cards are subsequently added to tomorrow's review queue.
I was getting frustrated that I was studying new words that I had found via Rikaisama weeks ago, but hadn't really encountered since. This approach makes it a lot easier to remember new vocab, as (1) I'm explicitly studying it before I add it to my daily review load, and (2) I'm adding words that I have a high probability of slamming up against again in the immediate future.
I don't know where I'll be in a few weeks. Not sure I care.

At this point, boosting my vocab + listening ability feels more important than test preparation.
Edited: 2012-10-30, 11:36 pm