Apple has just pushed a new version of iOS – 4.3.4 (4.2.9 for the Verizon iPhone), that fixes PDF exploit used in JailbreakMe.com version 3. In a summary of what’s changed, Apple indicates that a fix has been applied that will prevent “arbitrary code execution” when viewing a “maliciously crafted PDF”.
We suggest you to save your iOS 4.3.3 SHSH blobs as soon as possible, since Apple won`t allow this for long.
You can use a lot of tools, but we recommend you TinyUmbrella.
This was just a quick reminder, since our target users need jailbreak for using Cydia Tweaks!