Not Lady Gaga, just Gaga. Admob is out with its latest metrics report and it says that smartphone traffic is growing like mad, on pace to nearly triple in a year. Below is Admob's chart showing how smartphones are taking off. Also, Android continues to grow fast, according to AdMob (although Admob's OS data will soon become suspect as it's in the process of being acquired by Google). And Symbian OS share continues to collapse, as its traffic share fell from 43% to 18%. Below is a chart of the OS share according to Admob's measure of apps traffic. Samsung leads the feature phone category, followed by Nokia and SonyEricsson