iOS 5.1 comes with battery life and performance improvements, a new camera slider on the lock screen, and Japenese-capable Siri. You can also delete individual photos from photo stream for devices on iOS 5.1. AT&T users may start seeing "4G" in their status bar, even though their speeds arne't any faster on iOS 5.1. The iPad camera app was redesigned on iOS 5.1 as well. If you want iPhoto or any updates for iMovie, Pages, Keynote, or Numbers now or in the fture, you'll also have to update. TO DATE, iOS 5.1 HAS NO UNTETHERED JAILBREAK! Please remember to like, comment, and subscribe!! Twitter: / iphonemastrmind