Apple just issued iPhone OS 3.1.2, available on your iTunes app right now, offering some bug fixes to few of the problems you may have seen, including pesky sleep mode bugs that kept your iPhone device from waking up, network connection interruptions many has suffered from, or this video streaming crash, occasionally happened. Just click the update and make it work.

Update1: And just in case you were looking for a jailbreak app that will help you hack your iPhone 3GS 3.1.2 OS or iPod Touch 3G without activation, Geohot’s Blackra1n key just turned official, and will let you in right away, as long as you run a Windows platform. No unlock, only break. Proceed with caution.

Update2: But if you just want to stick with good old friends, Dev Team’s PwnageTool 3.1.4 is just around the corner. You can download it from here, in case you’re a Mac, and get your iPhone 3GS and iPod Touch 2G devices hacked. iPod Touch 3G users, you’re out – this time – no support at the moment, but stick around for updates to come.

Update3: Looks like blackra1n RC3 just went live, offering full blacksn0w unlock for the latest 05.11.07 baseband. If you’re a Mac or a Window user – it really doesn’t matter – just grab your file and make it happen.