Site Similar to http://www.spoofcard.com/

We want to start a service like this [login to view URL] Please make sure you read through how it works. ( Basically it just uses the API provided by [login to view URL] so no backend phone pgramming required) 1.) Instead of Iphone app we will be using a browser based HTML caller that could also be used to make a call from the website. 2.) Native android app required. Please be careful to bid, Make sure you see how it works.