Store App Locator

Looking for help in creating an Android & Blackberry app. I would like customers to be able to open the app and access a database of retail stores. An option to find a store via GPS location. Once a customer finds a location, they would then open the location to reveal store information including picture of store, address and any other information. Other options within the app to take customers to specified websites. I would like to be able to manipulate a database with some kind of spreadsheet if possible as more stores are added. This project is for a new small company.