Mobile devices, which includes smartphones and tablets, now account for 7 percent of worldwide traffic on the Web, according to a report issued Tuesday by comScore, which monitors online trends. ComScore said this is the first year it has created a mobile report, so the company did not have information on the growth of mobile traffic in previous years. ComScore found that 37 percent of cellphone traffic takes place over a Wi-Fi connection. That has continued to grow in recent years; the report noted that Wi-Fi traffic through mobile devices grew as much as 3 percent in the last three months alone. Most startling among the mobile statistics is the disproportionate usage rate of Apple iPad owners. The report found that the iPad accounts for 97 percent of all tablet traffic in the United States. Analysts at IDC recently estimated Apple has sold 75 percent of all tablets. Apple said in July that it had sold close to 29 million iPads since the device went on sale in April 2010. Get the full story at The New York Times