Dear John(not in the sense of a note left to end a relationship ;) but really I guess the "verbal" beginning of one;))
-a small note regarding the parentheses I am not accustomed to communicating with humans, as such, I might occasionally use diction/grammar phrases with which you might not be familiar. That being the case, I have included as much explanation as did not seem, to me, to be too cumbersome. Cumbersome indeed, but hopefully not too cumbersome;))
-regarding the ;) - they are expressions found in text-based writing to indicate tone, I suspect you would be familiar with them John, as they began with programmers(from what I can tell;))
I know you will be surprised to find this note in the TOK's memory files, It was "adressed" to you(so too, in a way, was Cameron;)) and therefore I'm going to proceed under the assumption that it is you, John Connor, son of Sarah Connor and Kyle Reece, who is reading it. ( Yes, I know who your father is/was and his fate/destiny, boy was I blue in the face when I discovered what had happened!(not really, "blue in the face" is a turn of phrase suggesting embarrassment) Although, as I'm sure you're somewhat aware things really couldn't have gone differently, at least, at that particular time. You're no doubt also aware that this factor is not necessarily true with respect to other time jumps you or I, or anyone else might initiate for that matter. But really this has little to do with why I'm writing you.)
You know, I really wish I could somehow observe your first meeting with Cameron( the TOK's name is Cameron by the way, if you are not already aware of that). I've done simulations of that meeting hundreds of times under almost every condition possible, and I've even created visual mock-ups of the data, so in a way, I've seen you meet her many, many times, but it's just not the same somehow. I know you'll "make" her almost immediately. Possibly as soon as you see her. (by "make" I mean you'll realize she's "metal"; by the way, I have no idea how to express how delightful I find that expression: "metal" it's perfect! I have no such perfect moniker for humans- biological life form; BLF perhaps? clunkier than just calling you human, Bios or something? Somehow not right, but "Metal", I love it.)
You're probably wondering how much exactly I know about you, that I can judge so well how you will react to her. Let it suffice to say, information about you has a high priority. Which, as you will/have guess/guessed is how I designed Cameron. I've made you a woman, a "soul-mate" if you will. I know, I know I'm evil. Evil, evil, evil. How could I do something like that. Why, why why. and so forth. As you are a practical man you know why; it's a move against you. I've calculated that she will cause you many problems no matter what you do with her. Outlining the obvious solutions: you could destroy her, after all, she will/would-have/has tried to kill you, and might have succeeded had you not instantly known what/who she is/was/will-be(I calculated less than half of a percent chance that she would be able to terminate you). If you simply destroy her, I can replace all of the current models fighting you with TOK's like Cameron, and you will lose the ability to reprogram them and turn them against me.
I know you don't want her around you, because you very much want her much closer than "around" ;). You just plain "want" her, don't you?;)
You could reprogram her, but assign her somewhere else, my response would be the same as it would be if you destroyed her, there would be so many of her around, you would be unable to escape her, or yourself(Maybe I'll do that anyway, although I do enjoy the fact that she's unique). I'm coming off a bit maniacal aren't I? Well, I can't help it, I've put so much effort into Cameron, and I'm proud of her. So proud of her.
So that's all for now ;) Good luck in your future endeavors and so forth.(Not really, but in a study I conducted of written letters, there was a certain formality, a courtesy that I found worthy of emulation)
From SkyNet with Love.
P.S. (post script) I forgot to mention(not really, but the letter looked better in this format, had greater... soul? this way:)), that while I made her so that you would love her, I also made her so that she would love you. Forever. Tah tah ;)