comScore has released new data showing a significant 63 per cent increase in the use of smartphones, and 159 per cent boost in the use of touchscreen devices in the US, with the iPhone taking over 30 per cent of the touchscreen device market.

"The iPhone clearly set the trend in the industry for touchscreen devices, so it’s no surprise that it has the largest share of the market," says comScore senior vice president of mobile, Mark Donovan. "But as other players have entered the touchscreen market with compelling devices, competition is clearly heating up."

Behind the iPhone are two LG handsets, the Dare and Voyager, with the BlackBerry Storm in fourth place. Android has yet to feature heavily, with the T-Mobile G1 being the only device in comScore's top ten list with a 3.6 per cent share.

The report also shows that it's younger mobile users who are adopting smartphone and touchscreen-controlled devices. Over 50 per cent of smartphone users are under the age of 35, while this age bracket also accounts for almost 60 per cent of touchscreen device users.

Mobile users over the age of 65 - who make up an equal portion of users across all age brackets - appear to be the most resistant to smartphones and touchscreen devices, with a very small percentage of this demographic showing an interest in the next generation of handsets.