When watching the Android Maps vs. iOS Maps video review below, you will hear that Walt Mossberg mentions Street View will be coming to the iOS web maps browser tomorrow thus making Google Maps an even better option than Apple Maps. Mossberg said:
In fact, Google plans to announce on Thursday that it is adding its popular Street View feature, missing from Apple?s maps, to the Web version of Google Maps accessed from the iPhone and iPad. I tested this addition, which displays 360-degree photographic street views of selected locations, and interior photographic views of certain businesses, using sample links Google sent me. These links worked well, allowing me to see the locations and pan around with a finger.