This article from the New York Times comments on how PDAs are significant sources of evidence in criminal prosecutions, in cases where the accused downloaded lots of incriminating information onto his or her palmtop, and then forgot to delete it. An expert is quoted in the article as saying that a PDA is a person’s “alter ego” — “it represents their aspirations, who their contacts are, where they spend their time, their tasks and objectives, and how they completed those.”