Sn0wBreeze v 1.7 is now available for download (use links at the end of the post) allowing jailbreaking of iPod Touch 3G - the only condition being that either the device has iPhone OS 3.1.2 or have saved 3.1.2 SHSH blobs for restore.

If you are stuck with an iPhone 3GS having newer bootrom (iBoot v 359.3.2) and want it to be jailbreaked here is some great news for you - iH8sn0w Sn0wBreeze utility will soon be upgraded to support tethered jailbreak (meaning you will have to re-jailbreak if your iPhone reboots) of iPhone 3GS having iBoot v 359.3.2. The only catch is that you must have your iOS 3.1.2 ECID saved as you will need to downgrade for this to work.