This is a little off topic, I realize, but I was thinking...I just sold my 3GS, and It just made me a little sad, seeing it go. Since's I've had it so long. And then I thought...well I don't know much about this aspect of Siri, but supposedly it learns from being used, or something? If it's "adaptions", or whatever this learning produces is stored locally, then I'll certainly be hesitant to ever restore it to factoring settings. Would I be...killing it? I know it sounds stupid, but if it does technically learn from you specifically, than in a way it's unique. Not that it would necessarily behave differently, but it's could be interesting, (distant?) foreshadowing for the possible future. Siri really might be the first widely-used "AI".