It should do, but I'm too chicken to test it. For this to work, you need to start off on 6.1.3. It will not work if you are already on 7.0. It will *only* work on an iPhone 4. Outline steps: 1) Jailbreak 6.1.3 (using Redsnow). This is only a semi-tether (google it) but it works well enough. 2) Save SHSH blobs in Cydia and/ or Tiny Umbrella and / or iFaith 3) Upgrade to 7.0 4) Restore to 6.1.3 via Redsnow using the saved SHSH blobs. The above should work. I anyone here brave enough to test it and fill in the details? Or can anyone suggest a reason the above might fail?