I just received the newest Trulia newsletter and it puts mobile front and center:
Trulia says that about 10% of its traffic comes from mobile devices. Zillow told me about the same number, spiking to 15% on weekends.
Trulia recently added rental listings, which CEO Pete Flint said were even more likely to be searched on mobile devices in his view. But this is clearly not a case where mobile is cannibalizing traditional PC search behavior. It’s very much a complement to PC usage and an illustration of how local sites need to offer good mobile experiences — to deliver utility but also to cement loyalty.