Smartphones accounted for 48% of AdMob's worldwide traffic in February, up from 35% in February 2009, fueled by heavy application usage.
AdMob's latest Mobile Metrics Report also show that while the share of feature phone traffic declined from 58% to 35% year-over-year, absolute traffic still grew 31%.
Mobile internet devices account for 17% of traffic, mainly through the iPod touch, Sony PSP and Nintendo DSi.
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