Hey everyone, I used Erica Sadun's Unlock.app to unlock my phone (I have AT&T currently, but in case I ever switch or travel internationally, its nice to have the feature). My question is whether or not this is a permanent unlock. For instance, when I do a software restore, do I have to re-unlock the phone using the app? I realize Apple could break this with a software update, but my main concern is breaking it with my own software restores. Any insight would be appreciated, thanks!