That would br sweet, but I'm thinking "no." Still being on 3.0, I'm guessing I'd have to track down an unmodded 3.1 .ipsw and install that before running this new jailbreak, since updating in itunes now will get me 3.1.2.
Ask a question that can't be fully answered? Geo doesn't even have blackra1n working for 3.1 yet he is close but still working on it! Since 3.1.2 just came out yesterday I think he will worry about 3.1 first then see if the exploits are the same.
A program can be perfectly functional and but not be ready for release due to stability issues or the desire to add more features. He's trying to jailbreak all 7 types of iDevices.