directory app with geolocation for iphone and android

Im looking to get a iphone and android app build to accompany a soon to be published website. The website is a directory of clubs. It lists their past events and current schedules. The main content for the app will be pulled from the website. These are the main features the app will need to include: • Find the nearest club to the users current position. • List them according to distance. • List the current schedule of the clubs. • Search for club based on name and location. • Search for events. • Find an event according to location. Listing distance and event type. • List past events of each club. The website is build using Ruby on Rails. The logo and design is developed and can be used as basis of general app design. Please include your portfolio in your reply, and specifically mention any directory type apps in your portfolio I could look at. No time wasters please. Generic replies will be ignored. Please indicate how you would do this and estimated timescale.