Apple released iOS 4 for iPhone and iPod Touch

Apple has just released iOS4: the highly anticipated operating system update for iPhone and iPod Touch. The update is free for both iPhone and iPod Touch. Some functionality is limited for some models. For example multitasking will not work on iPhone 3G.

You can download iOS 4 now by connecting your device to iTunes and hitting Check for Update. The other option is to download it directly. Here are the links:

iPhone 3GS

iPhone 3G

iPhone 4

iPod Touch 2G

iPod Touch 3G

For other earlier models, like iPhone 2G, there is no iOS 4. The version for iPad is on its way. Stay tuned.