SIRI: iOS 6, Siri understands more languages, works in more countries, and is available on the new iPad.2 So you can get more things done in more places around the world.
Facebook: Share a photo to Facebook right from Camera or Photos. Post your location right from Maps. Brag about a high score right from Game Center. If you have your hands full, just ask Siri to post for you.
Shared Photo Streams: share just the photos you want, with just the people you choose. Simply select photos from the Photos app, tap the Share button, choose who you want to share your photos with, and they’re on their way.
Passbook: Your boarding passes, movie tickets, retail coupons, loyalty cards, and more are now all in one place. With Passbook, you can scan your iPhone or iPod touch to check in for a flight, get into a movie, and redeem a coupon.
Facetime: FaceTime now works over cellular networks 3G as well as Wi-Fi, so you can make and receive FaceTime calls wherever you happen to be.
Phone: iOS 6 adds new calling features to your iPhone. Now when you decline an incoming call, you can instantly reply with a text message or set a callback reminder.
Mail: Redesigned with a more streamlined interface for easier reading and writing, Mail in iOS 6 lets you set up a VIP list so you’ll never miss an important message from your accountant, your boss, or your BFF.
Safari: iOS 6 brings even better web browsing to your iPhone, iPad, and iPod touch. iCloud Tabs keeps track of which pages you have open on your devices, so you can start browsing on one device and pick up right where you left off on whatever device is handy.
Accessibility: iOS 6 comes with even more features to make it easier for people with vision, hearing, learning, and mobility disabilities to get the most from their iOS devices.
It was disappointing to be honest, everyone was expecting the announcement of the iPhone 5 and a release date, but these people just love to hide big surprises very well i guess, i put a recap video below for more information on what happened in the conference.