50 years mr crystal.
Doesnt hurt to post ideas here?
We know it's planned, it's in the wiki, so...
Once we all get used to "The Grid" as opposed to "The Net". The Net being what we have as The Internet and The Grid being the 3D Web we know as SL. (In it's infancy)
In time, we all have our own regions and so have MySpace but much bigger. And the rest...
Moving on, we have the world as we know it, all mapped out via Google and Co, providing a real-time GPS accurate 3D world. This could be the Public Grid but only transient in that it can be remoddelled at will with skins and the like to keep it PG for example. Streets will have all and more shiny advertising that ever they could wish for. Your own property can have a portal to your private, or public "World."
Stay with me here...
Now for the interesting bit...Remember, were 50 years in the future
Walk down any street and check it out, aint real life grand. Trees and shit. Now that the civic authoroties cleaned up the streets, nothing intrusive appears other than street signs and the ever present "No Parking". Oh, and traffic, lots of traffic, but quiet and clean traffic, all electric traffic.
Now reach for your breast pocket and remove the "Glasses".
Your grand real life instantly comes alive with fireworks and flashing neon everywhere, whoa, turn down that particle count.
The live feed being provided to the "Glasses" shows GPS acurate Real World buildings overlayed by the 3D Virtual World graphics and a Stargate type portal into the "

insert sexual connotation here) World for Men"

just on the corner there. Um, maybe, no Im busy, definately next time.
There will be fees and there will be death, it can be assured but for some real world 3D fun I don't think it will get any better than that. I can say, I wont live that long. DAMN!
So if you want real world, leave dem specs at home.
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Have fun people and be nice to each other...