iOS 5 Full Details
More info: http://www.engadget.com/2011/06/06/apples-ios-5-all-the-details/
Today at WWDC 2011 Apple unveiled iOS 5, the latest version of the iPhone, iPod touch and iPad. iOS 5 brings a lot of new features including Notification Center which brings a new notification system similar to Android.
There also is Twitter integration which will allow you to log into Twitter from the Settings page and Tweet from several apps such as Maps, Safari and YouTube. Safari has also been improved with Reader, Reading List and Tabbed Browsing. In the Camera app you can take photos from the lockscreen, take a photo with the + volume button and do some retouching and photo editing from the app.
PC Free is a big new feature that allows you to wirelessly sync your iPhone, iPod touch and iPad without needing a computer ever, even to activate. Firmware updates are also now downloaded over the air. iMessage is another big feature that brings BBM style messaging to the iPhone, iPod touch and iPad.