I've been playing with iOS 7, and even though it's a beta, it especially bothers me when features have been removed from iOS 6 that were actually usefull. What I've found so far: - List view in Calendar is gone, as well as the dots for days with calendar entries - Letter scroll in album view (Music) - Spotlight search which starts searching before you hit 'search' - Weather in Notification Center which tells you more than just the weather for the day. - Do Not Disturb icon in the status bar. When DND is set for 'locked state' only, it only shows the icon when the phone is locked. This is a bit confusing. I played around with iOS 7 a little bit, toggled DND, forgot about it, then locked my phone, only to find out I missed a few messages sometime later because apparently DND was on without telling me.