Inventor of original smartphone to speak in Exton To gain insight into the world of modern communications, the Chester County Library in Exton is inviting the public to a presentation on Monday, Jan. 6, in the Struble Room. From 7 to 8:30 p.m., Dr. Rocco Leonard Martino, the inventor of the original smartphone, will present  “Personal History of the Computer,” a discussion of the history...