I had never heard of this "theory" before and no, I absolutely don't believe it. There is no scientific reason for us to estimate that the end of the world will come in 2010.

Some natural disasters can be predicted better than others. For instance, if a meteor is large enough, scientists can spot it ahead of time and tell if it might hit the Earth and when that would happen. We can't tell exactly when an earthquake will strike, but by looking at features on the land (faults) we can get an idea of where there is a potential for an earthquake as well as get an idea of how active a fault is and determine the likelihood of a very large earthquake on a particular fault.