There's a new group of regions, possibly a new continent, it seems, with regions named SSPn. I only know about this from seeing a Flickr photo by Daniel Voyager. Does anyone know what it's for?
I'm afraid that in spite of the hovertext, it does not mean what it appears to mean.
These squares (green for townhomes, blue for houseboats, and yellow for campers) are scripted and when rezzed will detect the size of the parcel it is sitting on.
However, no parcels, other than for the houseboats, have been created yet, so the square has detected a huge parcel, larger than 1024sqm.
And how do I know that these yellow squares are for campers? Because these prims are named "Camping Parcel