Geohot failed to release it, but comex did. Here is the full guide.
Geohot did it again, this time with a nice video-proof. Apple’s heightened security with the latest bootrom in ipt2,3 and 3GS iPhones forced many to resort to tethered jailbreak which can be a pain when your iPhone decides to reboot on the go. A blackra1n like app should soon see the light of day for total freedom to all Apple mobile gadgets! Till then, check geohot’s post.

Geohot did it again – the impossible! He hacked into Apple’s most secure baseband till date – 5.11.07 is now successfully unlocked and will be ready for general consumption come November 4th, 2009! He gave us 3.1.2 all device jailbreak and now blacksn0w! This kid sure is awesome – all props to Geo, the man!

Update : Mac version is now released too! Download it here. I prefer Dev Team’s solution cos’ we can preserve the baseband fro unlock!
Geohot released a Windows version of jailbreak only tool for iPhone 3G, iPhone 3GS, iPod Touch 2G/3G running at 3.1/3.1.2 firmware. Before even thinking about this jailbreak program, read this important warning over and over!
Blackra1n won’t Unlock 5.11 baseband. It just jailbreaks and it won’t hacktivate. This translates to the following :
You can use this program ONLY if you have an official iPhone contract and you don’t …

UPDATE : The following guide holds good only for iPhone 3GS 3.0 firmware. For 3.0.1 use redsn0w guide instead!
Geohot has done it again! He gave us the first jailbreak for iPhone 3GS and now, we have a much more efficient iPhone 3GS unlock – purplesn0w. Seriously, all the sn0w versions are confusing but well, that is their game!
For now, the iPhone 3GS should be activated using an official carrier before purplesn0w is installed on your iPhone 3GS. (Hacktivation for other carriers to follow soon)
Why is this unlock (purplesn0w) more reliable …

Geohot first released the 3GS Jailbreak solution and the Dev Team, who initially planned on releasing their version of the Jailbreak after Apple released iPhone 3.1 firmware had no other choice but to release it immediately! Dev Team’s redsn0w handles the jailbreak for your iPhone 3GS more like the 3G and 2G variations.

Download redsn0w using the following links :
redsn0w for Mac OS X
redsn0w for Windows
redsn0w for Linux (introducing!)
Click here for a simple and quick guide to get you up and running with this revolutionary iPhone 3GS jailbreak. Don’t hesitate …

Update : iPhone 3GS is jailbroken and unlocked @ http://ilikemyiphone.com/wordpress/2009/07/03/jailbreak-and-unlock-iphone-3gs-using-purplera1n-by-geohot-simplest-jailbreak-tool-ever/
Geohot has done it yet again! He managed to break the chain of trust which means he broke into Apple’s territory on the iPhone 3G S. As soon as the iPhone 3G S is jailbroken, that signals an unlock solution in the waiting since both the 3G flavors of the iPhone share a similar baseband 4.26.08! The ‘S’ in 3G S which stands for Speed can now be experienced by the entire jailbreak community soon!
If you have what it …