I took this low-quality cameraphone picture in a Barnes & Noble. Personally, I'm grateful for the 2012 phenomenon: it's helped focus much-needed attention on issues pertaining to the near-future and our role as planetary stewards.
I'm ultimately agnostic regarding whether anything remotely "weird" occurs on December 21, 2012. My guess is that the fervently New Age crowd is in for a disappointment (which will, of course, be duly incorporated into its existing belief structure for fear of fracturing the entire edifice).
But if thinking about the future by way of the 2012 meme catalyzes interest in making the future a place where we might actually want to live, I'm all for it. And perhaps the ancient Mayans would have agreed.