The iPhone’s stock Lock screen is as barebones as can be, and while some people love the minimalistic look, others with Apple would make better use of the available screen real estate. Those in the latter boat, much like myself, will come to appreciate a new jailbreak tweak called Centurion by iOS developer maximehip.
Centurion is essentially a new widget that appears just below the date and time on the Lock screen with an informative view regarding current/upcoming events and the number of missed notifications for some of your favorite apps.