IDC has the latest Q2 2014 tablets shipments. The market declined a little by 1.5% with Apple and Acer seeing the larger market share losses. Lenovo saw the largest market share percentage gain. However, a large percentage gain of not a lot (2.4%) is still not a lot (3.3%).
IDC say the market is being impacted by the rise of large-screen smartphones and longer than anticipated ownership cycles.