So all you lucky iPhone users out there now have iPhone 3.1.3 OS update available which apparently the big thing about it is that it will deliver improved accuracy of reported iPhone battery level on the iPhone 3GS unit reports an article over on apple insider.

iPhone 3.1.3 OS update is said to also deliver a resolve to a problem launching some 3rd-party apps, and also brings along an address that mends a bug which makes apps crush when using the Japanese Kana keyboard.

You’ll also find that iPhone 3.1.3 OS update delivers several security updates which are related to WebKit, Recovery Mode, ImageIO and CoreAudio and basically that’s about it.

Not a great deal in iPhone 3.1.3 OS update, and nothing really in the way of new features which is a tad disappointing; still maybe it won’t be too long before Apple pushes out iPhone 3.2 OS to the iPhone as its only for the iPad at the moment.