having studied 2012 a fair amount; I have to say that I am partial to the idea presenting in 'Gaia 2012' (definitely worth a gander, if not a full read)
In brief, the experiencial process of humankind is following a type a 'map' ,, one that closely identifies with chakaras (or magnetic centers, meridians, whatnots) where as starting in the base (root) 'cavemen' were primary interested in the development of survival patterns and having an idea of concept of Root. Then, the text continues, came the city of Lemura to run it's course, followed by Atlantis to run it's course as well. I am far from doing the text justice, but as I understand it 2012 is supposed to be around the time of the Ascension into a more universal understanding of Love. not 'romantic' or 'conditional' specifically "Love" as it is intended in the spirit of the word, not it's linguistically based definition. Beings may ascend or choose to participate in a different form of consciousness whereas they will continue to learn and grow until they find themselves ready for such ascension.
do I believe that on a specific day, at a specific time, something huge is going to happen? not specifically, but if it does I wouldn't be surprised. Thinking of the year as a kind of marker for things to hold positive faith in; seen as a refreshing thought to renew personal power in the Now.
*shrug* works for me