IDC estimates Apple's (AAPL) 14.6M calendar Q2 iPad sales were good for a 32.4% tablet share, down from Q1's 39.6% and the year-ago period's 60.3%. Android (GOOG) tablets are given a combined 62.6% share, up from 56.5% in Q1 and 38% a year ago.
Apple is still the market's biggest OEM. #2 Samsung (SSNLF.PK) is assigned an 18% share on 8.1M shipments vs. a 17.9% share in Q1 and just 7.6% a year ago.
Strategy Analytics has estimated the iPad had a 28.3% share in Q2 vs. 47.2% a year ago, and Canalys has given it a 42.7% share vs. 71.2% a year ago. The firms respectively peg Android's share at 67% and 53%.
IDC thinks total tablet shipments (not the same as end-user sales) rose 60% Y/Y in Q2 to 45.1M. That's a marked slowdown from Q1's 142% growth. The firm sees 2H tablet launches fueling a growth pickup Strategy Analytics and Canalys both put Q2 shipment growth at 43%.
IDC has estimated 2013 tablet shipments will rise 59% to 229.3M.