Touchscreen mobile phone adoption in the US grew 159% during the past year to 23.8 million users in August 2009, according to a study by comScore. The substantial growth in touchscreen phone adoption outpaced the already strong 63% growth in the adoption of smartphones.

iPhone Devices Dominant

The rate of adoption is being driven in large part by the Apple iPhone family, which owns 32.9% of the touchscreen device market for users 13 years and older. LG Dare follows with 8.7% of market share, LG Voyager with 7.8%, Blackberry Storm with 7.0%, and Palm Treo with 6.5%.

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