The newly formed evad3rs are close to completing their work on the latest iOS 6.1 jailbreak. The team, made up of @MuscleNerd, @pod2g, @Planetbeing and @pimskeks, have created a website for their jailbreak and are updating it with progress reports.
According to the evasi0n site, the jailbreak is 68% done, with both the jailbreak apps for Mac and Windows completed. The linux app and some testing are on their plate right now. The next step is private beta testing, which will likely be followed by another round of tweaking before the final release.
The latest rumor suggests the team will be ready to roll out the jailbreak on Superbowl Sunday.