Google Places for iOS [mac] review
The free Google Places app is everything you should expect from Google: a clean, customizable, easy-to-use method of searching your iPhone for nearby bars, bakeries, and other types of businesses.
Google Places comes with a preset list of searches of business categories—the list is easily edited to reflect your preferences—and quickly displays nearby results for your queries. You can save favored results with a star, read reviews of that business from “across the web,” and even contribute your own ratings and reviews.
One minor complaint: Google Apps is inconsistent in how it uses maps. Search a category, and you have the option of viewing an in-app map showing all the nearby businesses of that type. If you want a closer look at the location of a particular business, though, you’re whisked without warning to the iPhone’s native Maps application. It’s annoying to have to flip back-and-forth between apps.
Search results in Google Places not only turn up addresses of nearby businesses, but also reviews pulled from across the Web.
But, because it draws upon the huge databases of Google itself, Google Places is still a great, useful tool for any iPhone user who ever leaves their own neighborhood.