Yahoo Search Launches iPhone Safari Version
In short, the mobile Safari version gives you almost all of the features the normal Yahoo Search gives you, but with fewer ads and on a smaller screen. Included features are SearchMonkey, Search Assist, shortcuts, and much more. Do note that Yahoo has not built out an iPhone App; this is just a mobile Safari enabled version of Yahoo Search. Here are some screen captures of Yahoo Search on my iPhone:
Yes, Google does have many mobile Safari formatted products already.
Hat tip to Mashable for spotting this.