Redfin’s most unfortunate sin is that the real estate service isn’t live in all 50 states. If you find yourself in one of Redfin’s coverage areas, however, its website and mobile apps offer up a clean, easy to use way to peruse homes for sale. The iPhone app lets you check out available homes plotted on a map in your area, with listings updated every half hour or sooner.
Redfin Real Estate [iTunes]