There is a new proposal on the Linden table. It comes from Toysoldier Thor and can be found in the JIRA as: SVC-8082 – Proposed Global Service for SL: VIRTUAL LANDMARKS & VLM Mapping Services.
The Problem
Consider what happens when you have a home or shop in-world and your landlord decides to return the land to Linden Lab or for some other reason you have to move. The land is either going to disappear and all your stuff will be returned or your shop or home will be gone. You find a new house, apartment, and/or shop. There is little that can be done to stop that process.
But, consider. What about all the Landmarks that point to your shop or whatever that no longer exists? What do you do with the dozens to thousands of links in the Market Place to your non-existent shop? Did you know there is no easy way to just change the landmark you have included with a product you have for sale? You have to reload the entire product package.