The third quarter of 2011 was perhaps the most eventful and unpredictable in the history of mobile. Apple’s iOS and Google’s Android continued to dominate the worldwide smartphone market, and a real challenger to either of those platforms has yet to emerge. Apple also continued its tablet dominance with the iPad, which has seen a raft of competitors but no real competition. However, that could change: Amazon’s recently introduced $199 Kindle Fire appears poised to eat into the iPad’s market share (if not its actual sales), thanks to its rock-bottom price point. Additional companies mentioned in this report include Hewlett-Packard, Motorola, HTC and Sprint. For a full list of companies, and to read the full report, sign up for a free trial.