Three of the most popular tools on the scene have been updated to be fully compatible with the iPhone 3GS: The Dev Teams software unlock - ultrasn0w, their jailbreak software - redsn0w (via torrent for Windows, Mac, Linux), and saurik's popular iPhone theming tool, Winterboard (via Cydia).
Two hours ago saurik twittered the following:
The newly released 0.9.2958 versions of MobileSubstrate and WinterBoard (upgraded to support ARM7/Thumb2) should now work on the iPhone 3GS
That was followed by a quick tweet from the Dev Team:
Released: redsn0w 0.8 (incl. 3GS, hactivate, linux) http://is.gd/1pRlV . Ultrasn0W 0.8 (incl. 3GS support) (see Cydia).
So it looks like purplera1n forced the Dev Team to respond by finally releasing their jailbreak software. Good news for all of you iPhone 3GS owners out there today, now you have two jailbreak solutions for your iPhone 3GS. Which will you choose?
For more jailbreak discussion be sure to check out TiPb's Jailbreak Central.
Update: The Dev Team have updated their blog since the release of the new software, for more information on why they decided to release it and more check it out!