The iPhone 4S was the top selling smartphone at all three of its U.S. carriers last month, but Samsung kept nipping at Apple's heels, according to investment firm Canaccord Genuity.
All three models of the iPhones 4S (16GB, 32GB, and 64GB) grabbed strong sales and a higher market share in the U.S. last month, with a little help from Black Friday and Cyber Monday. But so did Samsung's Galaxy S II.
Samsung's latest smartphone was the top seller at T-Mobile and the second best-selling smartphone at both AT&T and Sprint. The Galaxy S … Read more