Except your theory falls flat on it's face 3GS, 4, and 4S are also going to have iOS6.
True but it really doeasn't matter if the older models have the same iOS. Former iMac models also have the latest OSX. I also think the 3g/3gs nor the iPhone 4 generation will not be technicallly ready to use all the features iOS 6 will have.
What I tried to say was that Apple like simplicity in their product range. Besides the iPhone all other products are named without any numbers, recently, we all know, the iPad also went through this transformation. So to stop all the discussions about which number it is, technically, commercially or otherwise. They could bring out every year a new iPhone guided by a new version of iOS. And it really doesn't matter if the iOS numbers aren't entirely in line with the previously iPhone numbers. What's important is that the iOS numbers are in line and consistent from now on and that have been the case since the iPhone first came out.
From now on it could be called the new iPhone model iOS 6 or build iOS 6 for everyone who is into Tech and facts. The average user, who doesn't care about the specs, just will say I have the latest iPhone or an older one. And see on the packaging iPhone and a simple iOS 6 sticker. Just like they do from now on with the new iPad, have a look at it's box. It just says iPad and on the box you find a sticker with the corresponding iOS version. This way the iPhone finally will be in line with all other Apple's product, just like iMac, MacBooks etc.
I myself also really don't see the whole numbering thing a big of a deal. But since I do see the discussions come by a lot, I thought to share my point of view from an other prespective so things may could clear up.
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I'm surprised that anyone would spend so much time venting, ranting, complaining, arguing over the numbered name game. Is there a behavior professional on this forum that can explain this ? This has been raised so many times now, it dumbfounding.
Must be age related or they use this forum as a social therapy site..
Oh come on, this is a discussion site and we just debate on things that are even mentioned by adult, professional journalists and major Tech sites. Don't ask me why but it has become a hot and trending topic.
Of course it's just a minor thing but being here at MacRumors frequently we all can say we have a sort of twisted facination with Tech in general, even on the smallest things, but we love it and it's nothing to be ashamed about whether your 15 or 55.