Awesome news! Thanks for sharing it.

You can either wait for a new jailbreak, or use Spirit. As long as you have iTunes 9.1.1 or earlier, it should work just fine. You can sync an iPhone jailbroken with Spirit on iTunes 9.2, but you can't jailbreak an iPhone with Spirit on 9.2. It won't work and will only send your iPhone into a boot loop.

TinyUmbrella should allow you to save 4.0 SHSH without having 4.0 installed.

Find Notepad in your start menu and right click it... select run as Administrator and then select Open and browse for teh file. Change the part near the bottom that says .txt files to *.* any. You should see the hosts file and be able to open, edit, and save it then.

iclarified is a good one. They also have a lot of info too.

Might not want to post your entire serial number... not safe for you. You should have the old bootrom judging from the 919. (phone was made in the 19th week of 2009. Anything under the 40th week of 2009 should be the old bootrom, which is iboot 359.3)

No need to downgrade to unlock. If you are already jailbroken with Spirit on 3.1.3, just search for ultrasn0w on Cydia. Only reason to downgrade to 3.1.2 is if you want to use Pwnage to jailbreak and install a custom 4.0 firmware. Best to stay on 3.1.3 and wait for the new jailbreak which should be out pretty soon after Apple's rumored firmware update next week.

Never said to delete..... saying it MIGHT be deleted by an admin. Not allowed to post links. :(

+1... awesome news man. Thanks!

Pretty soon I am sure. Probably when Apple releases the 4.0.1 update. There will be one... hang in there. :)

Yep, a little complicated for most people, but it does work. I have a 3GS (OLD BOOTROM) that was JBed with Spirit on 3.1.3, and was able to restore to a custom 4.0 JBed firmware.

I am sure this will be deleted soon, because we are not allowed to post links to other sites at all.

But thank you again for sharing this! You made my night. It worked perfectly.