Apple has released iPhone OS 3.1.3. This iPhone firmware is for iPhone 3G, iPhone 3GS and iPod Touch. But unfortunately this iPhone firmware update 3.1.3 do not support iPad.

Moreover, there is no jailbreaking application available to jailbreak iPhone OS 3.1.3, so if you are using a jailbroken iPhone, you are recommended to stay away from this update. Soon, we will update you for direct download link for iPhone OS 3.1.3, so keep visiting Strategicnotes.

You may be interested to read this post : iPhone SDK 3.2 Beta