Here is a really good video explaining the 188 day Cycle to the next mega earthquake. The March 22, 2012 9.0 prediction didn't come true, but it did happen in a much lesser strength which was the 7.4 Mexico earthquake happened on March 20, 2012. But personally I think that the Sumatra 8.6 and 8.2 magnitude event in April 11 2012 was an extension of the Mexico event, instead of just one very strong earthquake. And also the 6.7 Philippine earthquake a month prior to the Mexico earthquake. Just my thought.
So the next mega earthquake is predicted around September 26, 2012 according to the 188 days cycle event. Lots of lower magnitude earthquake with at least 5.0 and above happens in many parts of the world surrounding a major event.
Note: You can see a small error in this video, if you look at the top- leo constellation, the February 27 event in Chile happens in the year 2010 and not 2011. It is mistakenly written as 2011.