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The advances and the similarities in touch are increasing at a rapid pace. Not sure if polymorphic touch is the right description yet we seem to be going in that direction. When sensors for touch include the whole phone you can select from the back for example without obstructing the screen. Gaming options will increase too. So… with the next iPhone have touch on the back panel (unlikely)… and if it did what does that do for the case market?
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"This is a possible solution, but a better, and more bottom-up and elegant one, is using filter tags (like hashtags, only with a '+' instead of '#') as a way to limit visibility to incoming (others') and outgoing (your own) geo location. Note: filter tags are not yet implemented by Twitter or other services: this is conjectural and conceptual at present."
I suggest that + be used for "call requests" rather than geolocation. I like the idea of = instead. There is already a framework around = that could perhaps be adapted.
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it is inevitable. apple will use their notification server to set up calls.
