New Real Estate Market Indicator?

I read this article moments ago and thought it was worth sharing to the RE community. It appears that there will soon be a vehicle that insitutional investors can use to guage a real estate market's trend - tradable futures and options. I'm guessing once it rolls out, it will only include larger metropolitan areas, but very interesting nonetheless. Now investors - REAL ESTATE investors - will have another tool they can use to guage their market.