Dynamics CRM via Monotouch

Please find the below sample code which works perfectly in visual studio with .net assemblies. However if we try to integrate the code in Monotouch and try to run , we are facing compatibility issues with the dlls like system.servicemodel.description.... where it doesnt support clientcredentials and system.runtime.serialization.

awaiting for any help from your end.

/Authenticate using credentials of the logged in user;

string UserName = "xxx.onmicrosoft.com";   //your Windows Live ID

string Password = "xxx";    // your password

ClientCredentials Credentials = new ClientCredentials();

Credentials.UserName.UserName = UserName;

Credentials.UserName.Password = Password;

//Credentials.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials;

//This URL needs to be updated to match the servername and Organization for the environment.

Uri OrganizationUri = new Uri("xxx.crm5.dynamics.com/.../Organization.svc");           //this URL could copy from Setting --> Developer Source

Uri HomeRealmUri = null;

//OrganizationServiceProxy serviceProxy;  

using (OrganizationServiceProxy serviceProxy = new OrganizationServiceProxy(OrganizationUri, HomeRealmUri, Credentials, GetDeviceCredentials()))

{

IOrganizationService service = (IOrganizationService)serviceProxy;

//Instantiate the contact object and populate the attributes.

Entity contact = new Entity("contact");

contact["firstname"] = "test1";

contact ["lastname"] = "hello";

contact["emailaddress1"] ="test@gmail.com";

Guid newContactId = service.Create(contact);