Fueled by the rapid adoption of tablets and their increased availability, non-phone connected devices (e.g. tablets, e-readers) are accounting for an increasing share of connected device ad impressions on the Millennial Media platform, according to the network’s November Mobile Mix report. In Q3, 1 in 5 impressions came from non-phone connected devices, up only slightly from Q2′s 19%, but marking a 6% point upward swing from Q3 2011.Smart phones continued to lead the device mix, generating 3 in 4 impressions in Q3, inching up from 74% the previous quarter and from 72% in Q3 2011. The share growth of smart phones and non-phone connected devices comes at the expense of feature phones, which dropped to just 5% share of impressions in Q3, down from 14% a year earlier. Read the rest at MarketingCharts.