Apple has officially released iOS 4 – those who have an iPhone 3G or 3GS can upgrade the new OS via iTunes. There are over 100 new features but some of the key additions include multitasking (only with 3GS), folders, playlist creation, enhanced mail, iBooks, tap-to-focus video, home screen wallpaper.
The whole process should take about 18 minutes.
Get it here at Apple
