I've been trying to extract the 3.0.1 (3GS to be specific) root FS for quite some time with no luck. I extracted 3.0 and 3.1 with no problems but can't find the vfdecrypt key for 3.0.1. I've spent an hour searching and it's nowhere to be found, but I would imagine someone out there has to have it. I'm looking for the 3GS key, though any model's 3.0.1 key is still useful. I tried to get the key myself but I don't have a proper unix system available right now and I'm not getting anywhere.

Here are the rest of the keys if anyone needs a reference:
VFDecrypt Keys: 3.x - The iPhone Wiki