For the legal profession, there is an app for that:
Many lawyers choose an iPhone to manage contact information, research law, edit and read documents, run conflict checks, manage their calendars, and stay connected with the office. There are hundreds of apps for the iPhone developed exclusively with lawyers in mind. As the American Bar Association’s 2012 Tech Survey indicates, the iPhone has become a primary tool for the legal profession: Of the 89 per cent of American lawyers who use a smartphone for law related tasks, 49 per cent of them use an iPhone. In comparison, 31 per cent use a BlackBerry and 16 per cent use an Android.
Read: iPhone apps for lawyers at Canadian Lawyer Magazine