Until recently, the idea of a “tablet market” was something many industry watchers joked about — there wasn’t really a tablet market, there was an iPad market. That has changed in recent months however, and it will likely change further as pricing on Android tablets continues to drop. Never has this been more apparent than in the third quarter, when market research firm IDC reported that Apple’s (AAPL) share of the global tablet market plummeted to 50.4% from 65.5% in the second quarter. Total tablet shipments were up 6.7% sequentially to 27.8 million units in Q3, and Samsung (005930) showed the most growth with shipments reaching 5.1 million units in the quarter, up 115% from the second quarter and up 325% from the same period last year.