It seems that jailbreak.me wasn’t the only jailbreak tool killed in 4.3.4/4.2.9 but the untethered jailbreak used from 4.1 was also closed. The 4.3.4 update was pushed really quickly to fix the security hole allowing a jailbreak on the device through a PDF vulnerability. Apple usually posts updates like that very quickly to make sure that their users aren’t at risk. This is a question of if this was patched to security concern or if this is another attempt to make jail breaking even harder so less people do it. Thanks To The Jailbreak Community for devoting time so we can have an easy jailbreak solution.
Apple has released iOS 4.3.4 patching the PDF security vulnerability which Jailbreak.me popular jailbreaking solution! So it is advised not to update if you are jailbroken and to store your blobs![UPDATE] It looks like 4.2.9 has been released for the Verizon iPhone as well. Not a big update but worth noting.