The survey found half of adults with at least a college degree owned a tablet, significantly more than those at any other education level. And 56 percent of adults living in households making at least $75,000 per year said they have a tablet computer, compared with 20 percent of those making less than $30,000 per year.
Research firm IDC said in a recent report that tablet sales globally are expected to grow 58.7 percent in 2013 to 229.3 million units.
This would bring tablet shipments above those of portable PCs this year. And IDC said it expects tablet shipments to outpace the entire PC market by 2015.[source : gadgets.ndtv]