iPhone 4.0.1 software update has just been released by Apple. It comes along with some bug fixes as well as the highly discussed improved signal strength formula that is expected to magically solve iPhone 4's reception issues.

There are also some other bug fixes brought by the iOS 4.0.1. The iOS 4.0.1 is only compatible with iPhone 3G (though that doesn't work particularly well), iPhone 3GS and the recently launched iPhone 4.

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