If your iPhone's displaying SMS messages out of order on firmware version 1.1.3, it's because your phone has a different time/date setting from your cellular provider. To fix it, just switch your phone to auto-sync from the network. [Apple]
A new software-based iPhone 1.1.3 firmware unlock has been claimed by GeoHot. Don't expect a one-click solution like AnySIM or IPSF: it requires some hackertastic command line voodoo-juju, so it's not apt for mere mortals.
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If you've got an already jailbroken 1.1.1 or 1.1.2 iPhone, you can now upgrade directly via Installer.app—no connecting to Mac or PC required. The only caveat is that the process takes 45 minutes as it downloads the entire upgrade via Wi-Fi, so hook your phone up to an AC adapter before you...