I'm not surprised to see so much push-back from agents [0]. It's a pretty competitive industry and most agents don't take it lightly when their leads are taken :). I do feel like more technology is being adopted but I am curious as to why real estate tech seems so behind?
I also work with real estate data on SimplyRETS (https://simplyrets.com). We aggregate data from MLS's across the US and the state of the art is quite a mess. We took a slightly different approach, though, in that we distribute the data to app developers and brokers through our API and let them manage their leads.
Very cool stuff. Keep up the good work!
[0] - See comments in http://techcrunch.com/2015/02/26/openlistings/ and http://www.inman.com/2015/02/27/startup-lets-you-shop-withou....