iH8sn0w on twitter said yesterday that the newest edition of Sn0breeze will be released very soon. DinoD7 has a video on Youtube with proof of the 4.1 jailbreak. [ame="http://www.youtube.com/watch?v=EPV0dSG1v4Y"]Proof of 4.1 Jailbreak[/ame]
Dino also has hinted towards a release of Sn0wbreeze on Wednesday.
The jailbreak will not be available for the iPhone 4, iPod Touch 4th Gen, or the iPad.
SHAtter should be available fairly soon. and from what I understand, sn0wbreeze will be updated to support the newest Apple products when SHAtter has become available.