iPhone OS 3.1.3 now available

Apple has released iPhone OS 3.1.3 for iPhone 3G/3GS and iPod touch. The new firmware update contains bug fixes and improvements, including the following:
+ Improves accuracy of reported battery level on iPhone 3GS
+ Fixes bug that may cause an app to crash when using the Japanese Kana keyboard
+ Resolves issue where 3rd party apps would not launch in some instances.

iPhone OS 3.1.3 also includes a number of security updates related to CoreAudio, ImageIO, Recovery Mode and WebKit. Find more info in the support document on Apple's website.

You can download iPhone OS 3.1.3 update by connecting your iPhone to iTunes and click ‘check for update’.