"Though it says 'Thousands' of units, it really represents millions. As the bars show, the market is growing fast and sales of tablets appear to double in 2012,"
"Keep in mind that this is all tablets, not just iPads. There's another healthy growth year in 2013, but by 2015, the growth has all but flattened out."
Lance Ulanoff reports for PC Magazine, read the full article here.