It has been suggested that tablet shipments could surpass notebooks in 2013, however recent reports contradict those estimates. Tablet shipments were expected to reach 240 million units worldwide this year, topping notebook PC shipments of 207 million. Digitimes reports a more realistic number with shipments of tablets hanging around 180 million units, an increase from 130 million units in 2012. Apple’s (AAPL) iPad is expected to continue its dominance in the 10-inch tablet market, while Android tablets such as the Nexus 7 will prevail in the 7-inch sector. Sales of the iPad mini are estimated to grow substantially, however, helping it chip away at Android’s lead. Meanwhile, shipments of tablets from Google (GOOG) and Amazon (AMZN) are expected to top 10 million units in 2013, while Samsung (005930) could double its shipments to 30 million units.