Johnson's comments are not much of a surprise, considering that he would be unable to divulge any such plans if they did exist
or he is simply telling the truth in a polite way without getting into the whole "because ATT has an exclusive contract with Apple for carrying the iphone until 2012, as was announced by Jobs on day one. So even if we wanted the iphone we can't have it" stuff. Since he wants the focus to be on what they do have. Given that that is his job