iPhone OS 3.1.2 is a minor update but it may be important for all the people that experienced problems after they have upgraded to version 3.1.

The new version should fix most commonly reported problems: iPhone suddenly losing network access (side note: this has occasionally happened to me even before version 3.1), video stream crashing, and the device not waking from sleep in certain situations.

iPhone OS 3.1.2 is Available

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