Making a thread about this should save people the trouble of searching and trying to get a conclusive answer, as I did when I first logged in. Based on what I've read at engadet and hackint0sh the update is killing unlocked phones. http://www.engadget.com/2007/09/27/iphone-update-re-locking-handsets-disabling-3rd-party-apps/ Just thought I would put this out there to those of you who are jonesing to get an update but are not sure what's the word. The thread here at macrumors eerily enough seems to have little to no mention of whether unlocked phones work or not. The "put an ATT sim in and all will be well" rumor that you may have heard also doesn't solve anything according to numerous accounts. I haven't updated for what it's worth but I am going off reports I have read in various places. FYI. I presume the devteam is hard at work at this point. Bless them.