Real estate Web site Zillow.com just announced an update to the free Zillow iPhone App. New features allow easy sharing of rich data about the more than 923 million homes on the Zillow site, through Facebook and Twitter.  Search capabilities include homes for sale or rent, recently sold properties and Make Me Move listings. Its GPS capability enables IPhone-delivered Zestimates as well.

Since its initial launch in April 2009, the Zillow iPhone App has been downloaded more than 945,000 times.  

“The response to the Zillow iPhone App has been incredible, with more than two million homes viewed on the app every month, said Spencer Rascoff, Zillow COO, in the announcement. “Now we’re improving their mobile experience by providing even more shopping tools and home listings, and giving users ways to share what they find instantly with family, friends, real estate agents and social networks.”