This year, there will be an average data traffic of 8 petabytes on a monthly basis over mobile phones in the US. Of this, close to 79% is expected to happen via smartphones. According to a recent study conducted by UK firm Coda Research Consultancy, the mobile internet traffic from smartphones is expected to surge so high over the next few years that by 2015, nearly 98% of mobile web traffic is expected to come from smartphones. In this time period, the number of mobile internet users is expected to rise from 84 million to 158 million.
Here is the share of mobile internet traffic from smartphones as compared to feature phones.