Keep up with the Sun's thorough coverage of Gainesville and the University of Florida while you're on the go.nnThe Gainesville Sun introduces an iPhone app to let you quickly check our news, features, sports, editorials, columns, blogs, photo galleries and videos wherever you are.nnRead through all of today's news and check back for breaking news throughout the day. You control which sections display on the main screen and how many articles you see. You can also adjust the text size, mark your favorite articles for later reading and share stories easily by email or post to Facebook or Twitter.