Ugh, amen! Zillow's interface is horrendous, both from a user and programmatic/scraping standpoint. I've been relying on Trulia for ease of pointing queries at their results pages, so fingers crossed that some of Trulia's sanity trickles into the Zillow site. That article makes it seem doubtful that this will do anything other than beef up Zillow's stack with Trulia's data, though. =/