I just read through all 560+ posts in the jailbreakme.com thread and didn't see this answered so I'm breaking it out as it might be unique. Is there a way to hactivate using the jailbreakme.com jailbreak? I'm on a jailbroken/unlocked 3.12 and would love to upgrade to 4.01 but I'm not sure if I can hactivate it. I use my phone on TMO and do not have an active AT&T sim to use to activate with. Thanks in advance to anyone that can help me out P.S. any worries in going from the old bootrom to the new one when doing an official upgrade through iTunes to use the new site?