Call WCF service from XCode iPad app

I have a WCF web service. I need an expert in Objective C to write a small proxy class that connects to the WCF service and marshals the data to make it available to my iPad app. The proxy class will have methods with similar signatures as the WCF Service methods (with the appropriate data type mappings) I will send the WCF interface & link to the appropriate bidders. Also feel free to suggest how the WCF service needs to be written to make it easy to write the Objective C proxy. (e.g. using SOAP, RESTFul...etc) as we are flexible to that.