US $8.95 a month for a 20,000-prim region on the hypergrid-enabled Virtuality Grid.
Other region sizes also available:
2×2 VAR region with 60,000 prims: $18.95
3×32 VAR region with 80,000 prims: $28.95
4×4 VAR region with 100,000 prims: $38.95
Augmented & Virtual Reality Confabulation
What Augmented Reality and Virtual Reality developers are talking about