tim cook appsAP Photo/Paul Sakuma  Apps have become an integral
part of the mobile experience. We use them to check the weather,
plan vacations, play games, and hail a cab, among many other
tasks.  The following men and women played a crucial role in the
development of these programs, whether by creating a crucial
feature or starting an important trend.  Here are 11 of the most
influential people working in apps today.