Research firm Strategy Analytics today announced the results of its calculations of worldwide tablet shipments during the fourth quarter of 2011, revealing that Apple continues to hold a majority of the market as Android improves its standing on the strength of Amazon's Kindle Fire. Peter King, Director at Strategy Analytics, said, “Global tablet shipments reached an all-time high of 26.8 million units in Q4 2011, surging 150 percent from 10.7 million in Q4 2010.