I was watching the TED lecture How to defend Earth from asteroids , and the speaker Phil Plait spoke of the possibility of this asteroid hitting Earth. He also said something about a Mayan legend. He says it's not a concern, is there a consensus on that? And what is the source for this Mayan legend?
Apophis is of no real concern to us as far as we can tell. That said, it doesn't mean another asteroid doesn't have our name on it...
According to the most reliable data we have regarding this particular asteroid it only has a 1 chance in about 250,000 of hitting the earth. University of Hawaii states:
Considering how big space is, this is pretty much a hit in cosmic terms. Keep in mind that this information has been readily available since 2009 at the NASA website as well.
As for the bat guano crazy 2012 stuff... Suffice it to say that anyone that honestly buys into that is mentally feeble, and should seek psychiatric help...