I assume a pwnage tool will be out soon, but in the mean time let us review the current steps to upgrade a currently Jailbroken 4.0 or 4.01 device to 4.1. 1. Install PKGBackup. This will backup Cydia Apps. 2. Install SB Organizer. This in combination with PKGBackup will save your Springboard layout. 3. Use PkgBackup to actually backup. 4. Open iTunes, right click your phone under devices and 'backup' This next step will preserve your baseband if you are on iPhone 4. 6.You can use TinyUmbrella in combination with iTunes to restore to 4.1 without upgrading your baseband. 7. Once on a fresh install of 4.1, sync with iTunes. Install and Run limera1n 8. Install PkgBackup and restore JB apps. Anything I am missing? Let me know!