THIS IS FOR OSX Intel ONLY.
First:
Take your iPhone out of the box (or after doing a complete restore)
Download this (from Rapidshare)
http://rapidshare.com/files/54783302...cript.zip.html and decompress to your home directory.
Download AppTap installer form nullriver (if you haven't already)
Step 1: Double click on the AppTapp Installer to install the Installer.app
Step 2: open the folder ~/youtubescript and double click on Install youtube.term
Restart your iphone.
What it does:
1) it puts a patched lockdownd file in the /usr/libexec folder of you iphone making it factory activated.
2) puts the three files where they go. (/var/root/Library/Lockdown/)
No need to use iasign or independence to activate your simcard. Just put any simcard from att/cingular and it will work.
Update: If you have previously activated using iasign or iactivator or independence, then you need to delete all the files in the folder: /var/root/Library/Lockdown/activation_records before restarting the phone.
Update2: If you already installed SSH then it's easy to just scp the files over.
scp the following files with the following commands
scp -rp data_ark.plist root@10.0.1.195:/var/root/Library/Lockdown/
scp -rp device_private_key.pem root@10.0.1.195:/var/root/Library/Lockdown/
scp -rp device_public_key.pem root@10.0.1.195:/var/root/Library/Lockdown/
scp -rp lockdownd root@10.0.1.195:/usr/libexec/
then restart your phone
remember to delete the files in the /var/root/Library/Lockdown/activation_records folder before restarting if you had previously activated with independence, iaasign, etc..