Mobile and tablets account for 20% of US web traffic

"Mobile Web browsing continues to take off, with smartphones and tablets accounting for 20 percent of Web traffic in the U.S. and Canada, according to a new report.
The analysis, from online advertising network Chitika, finds that those stodgy old PCs still produce just under 80 percent of Web traffic, with smartphones accounting for 14.6 percent and tablets making up 5.6 percent.
Other findings of note, Windows Phone now accounts for a third as much traffic as BlackBerry devices. Undoubtedly its market share is far less than that, but its more powerful browser and larger screen likely make it more conducive to Web surfing."

Source:  AllThingsD, 25th May 2012