Parcel Instancing

First off, allow me to say that I realize that this would be a huge undertaking. I've spoken about it at Andrew Linden's office hours previously on several occassions, and that is something generally agreed upon. However, it is also something that would be, more importantly, feasable in the system if they gave it the resources, and apparently it would have taken the same amount of resources as a change like Zindra. I believe that this change would actually be very effective in helping the long-term and long-time issue of "privacy" in SL, as well as overall improving the average user's experience as a whole due to the abandoning of "ban line" handling of who can access a parcel.

The Concept:

What I'm proposing here is "instancing," being able to have a separate "instance" of a parcel which only certain people can access, while what the public saw would be the bland and normal land. In use it would look like this:

Person A does not have access to X Parcel. He can fly over it, walk on it, and fly through it, but all he sees is a plot with some prims that the owner has laid out there, very possibly just some linden plants.

Person B does have access to X Parcel, and upon entering, can click a special scripted object, or hit a toggle in the client (intsert X action by user here), and they will be "phased" into the alternate instance of the parcel, where they can see all of the "private" things that the parcel owner has laid out. They would become invisible along with the rest of the instanced parcel. All text chat, voice chat, scripted sounds, etc would be confined to that instance of the parcel, so those without access would not be able to eavesdrop. It would be totally isolated from the public access "version" of the parcel. I'd say that non-0 channels (perhaps negative only?) should still be able to cross over so that you could have scripts on "both sides" communicate with each other.

Issues This Would Address

1. Obviously it would afford privacy at a far more affordable level than has been heretofore available. Currently, if you want privacy you have to buy an island to get it.
2. It would remove the annoying and long-deplored use of ugly ban-lines to keep people out, making SL both prettier and more friendly to privacy at the same time.
3. Instancing of parcels is in every way superior to the use of banlines, whose barriers are entirely artificial. The only thing you can't do is cross a ban line, which is absolutely no obstacle to anyone who wants to know what's going on.
4. This solves the need for those people who want to develop products in privacy, but can't afford an island to work on to keep their products safe from prying eyes. If anything, ban lines only arouse the curiosity of the passerby.
5. People can rent plots and make them only accessible to their own specified group or "safelist," and what goes on in that parcel can remain "their business." It would certainly spare the rest of us from seeing . . . the things which are not hidden by banlines and wouldn't be appropriate to repeat on JIRA.
6. Ban lines have no effect on sound, text chat or voice chat. It's still possible to cam into a ban-lined area from across the sim and eavedrop on a voice-chat conversation.
7. It has been suggested to optionally couple this with SVC-4118 which would be nice, but I don't know how feasible it would be. Still, it's worth mentioning.