After days of silence, the DevTeam has finally updated the official blog, writing a little phrase:
Update: We’re currently working on PwnageTool for 3.1, and will be sure to let you know when it’s available!
Good news! PwnageTool is a utility to jailbreak iPhone with a custom created firmware. So what we know for now is that DevTeam is creating a new version of PwnageTool for firmware 3.1. No dates or deadlines as usual. We will keep you updated.
UPDATE: PwnageTool 3.1 is avaliable