I don't necessarily disagree with you but I'm old enough to remember a time when mobile phones were the dorkiest possible thing to pull out one's pocket (or bag in the case of the bag phones).

Not to disregard your own experience, but I too am old enough to remember the start of mobile phones, and no one I ever knew thought they were dorky. Douchy maybe, but that was mostly bc the early adopters were wealthy businessmen and finance jerks (no offense to anyone if you are one). But not dorky.

I thought where you were going with this is that since smartphones are so ubiquitous any sort of AR system should utilize the phone for its primary processing. A headset is needed though for AR, it just has to be much smaller and lighter before they become mainstream.