Apple have released a small update for all the iPhones and iPod Touchs bringing the version number up to 3.1.2. Included in this update is only bug fixes but there are some important ones. For example, the bug where some iPhone couldn稚 be woken up after being put to sleep has been fixed.
Also some great news! GeoHot has announced that OS 3.1.2 is still vulnerable to the Blackra1n jailbreaking tool that he shall be releasing in the near future.
New Features/Fixes:
# Resolves sporadic issue that may cause iPhone to not wake from sleep.
# Resolves intermittent issue that may interrupt cellular network services until restart..
# Fixes bug that could cause occasional crash during video streaming