Apple has begun distributing an iPhone and iPod Touch software update that fixes several glitches in its recently released iPhone OS 3.1, including a bug that stopped the devices emerging from sleep mode.

When iPhone OS 3.1 was released in early September, users on Apple message boards immediately began reporting problems including reduced battery life, devices freezing or shutting down, and sluggish performance. Some users referred to the problem as "coma mode".

According to Apple, iPhone OS 3.1.2, which began to be rolled out last week, fixes "coma mode". The company also said in the statement accompanying the update that other fȋxed bugs include an issue that could interrupt cellular network services until the user restarts the device, and a flaw that could cause crashes during video streaming.

More: http://news.zdnet.com/2100-9595_22-352162.html