Last week, Management World Americas in Dallas was dominated by the changes that are underway in the industry. Content Management, Device Management and Convergence all got top billing in the sessions and in the discussions over coffee. Of course some people are thoroughly frustrated with the convergence word. We hear it from investors and shareholders every day of the week, and while nobody knows what it means, it has become the Holy Grail of all telcos to somehow win the convergence war. But this...