Just over half a decade ago, the smartphone landscape in the United States looked absolutely nothing like it does today. Companies like Microsoft (MSFT), BlackBerry (BBRY) and Palm (RIP) dominated the market in the U.S. and even Symbian had a healthy share in 2005. A major shift began in 2007 when Apple (AAPL) debuted the iPhone, and any hangers-on were quickly dispatched over the coming years after Google (GOOG) unleashed Android. We all know the story, but a picture is worth a thousand words and comScore issued a great chart during its recent “Mobile Future in Focus” webinar that shows just how quickly and decisively iOS and Android took over the U.S. market. The chart follows below.

Zach Epstein has worked in and around ICT for more than 15 years, first in marketing and business development with two private telcos, then as a writer and editor covering business news, consumer electronics and telecommunications. Zach’s work has been quoted by countless top news publications in the US and around the world. He was also recently named one of the world's top-10 “power mobile influencers” by Forbes, as well as one of Inc. Magazine's top-30 Internet of Things experts.