local search mapping app

Avg Bid (USD)
Project Budget (USD)
$100 - $500

Project Description:
Pretty simple mobile web app needed that I thought could probably be best done using Sencha however I am open to other suggestions. The app needs to:

1. pick up the user's current GPS location
2. based on the location pick up only those businesses that are maintained on my server in a database that are within "X" miles of the user's current GPS location.
3. return a list of those businesses back to the user sorted by distance.
4. If possible present the list graphically as points on a map
5. allow the user to click on any of those businesses and be provided with a review of that business maintained on my website. Each business review will have its own URL.
6. also provide a separate button next to each business so that if the user clicks on it, certain parameters will be passed to another website maintained by myself which will provide special driving directions.

I will be writing the backend to administer the data on the server. This app needs to run on all mobile devices i.e. iphone / ipad / android / android tablets / blackberry / windows phone plus any computing device that can access the internet and allow its GPS location to be determined.

The Google Maps API can be used for #4 above but not for providing any directions (see #6 above)

Skills required:
Amazon Web Services, HTML, Javascript, Mobile Phone, PHP, Software Architecture, Software Testing, Web Hosting, Website Management, Website Testing
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