Apple still has the lion's share of the market with 57% in the fourth quarter of 2011, but has seen its share drop for the first time. Apple had 64% of the market in the third quarter of 2011. Amazon, on the other hand, picked up 14% of the market in the fourth quarter after the Kindle Fire was released. Apple still shipped 15.4 million iPads in the quarter, while Amazon shipped 3.9 million Kindle Fires.
The Samsung Galaxy Tab and Barnes and Noble's Nook, which have both been around longer than the Kindle Fire, took third and fourth place with 8% and 7% of the market respectively.