Hey, now this is cool. Pacific Union offers mobile MLS. (And yes, I work for Pac Union, but it's still COOL!) Check this out, users can access information using a cell phone or PDA to search for property descriptions and photographs, contact an agent (preferably me ;), locate an office, even perform mortgage calculations.
The device pulls information from the Pac Union site, but unlike a many other brokerage sites, we actually display all listings from MLS, not just our own.
It's great for when you are driving around and see a house for sale--just look it up by street name to find out the price or pictures of the interior. Or when you visit an open house and want to send me a note about it--that note delivers the entire listing to me directly.
Point your mobile device to http://www.pacunion.com/Mobile and get started!