Facebook‘s mobile strategy faces renewed attention IPO excitement cools, with the company citing cellphone users as a huge source of potential growth though warning it is currently at the mercy of Apple and Android. According to Facebook’s SEC filing, 425m active users accessed the social network while mobile in December 2011 alone, more than half of the total number of active users in fact. The figures are likely to renew speculation that Facebook will try to make its own play for the smartphone market.











