iPhone 3.1.2 update released by Apple
A new update for the iPhone was released by Apple, version 3.1.2. It's not a major update; it focuses on fixing some minor bugs from 3.1, such as when the iPhone doesn't wake up from sleep, dubbed the "coma mode".
The update is 306.2MB and it's available for all versions of the iPhone and the iPod touch. It's available via iTunes.
iPhone 3.1.2 appears to be focused mainly on providing bug fixes for a few problems introduced in iPhone 3.1. Apple specifically calls out a problem where iPhones may not wake from sleep—it remains to be seen if this is the issue that some users had dubbed "coma mode". In addition, the update fixes an intermittent issue that could interfere with cellular network services and require a restart, and a bug that could cause a crash while streaming video.