IDC in a long-term prediction Thursday expected Android to stay in front in market share over the next four years but also that Windows Phone would claim second place. Google would move from 38.9 percent to 43.8 percent by 2015. Nokia's deal with Microsoft, however, would see all Windows phone platforms grow from just 3.8 percent today to 20.3 percent, just slightly under what the outgoing Symbian platform had this year.