How to connect to CRM using SDK (claims based authentication and custom STS)

I configured claims based authentication on my CRM instance. I'm using custom STS (Example available - http://cloudythoughts.siadis.com/windows-azure/windows-azure-appfabric/creating-a-custom-sts-with-windows-identity-foundation) Now I want to access to web services from some test application. Does anyone have some example for this? I tried with same code for connection in case of windows authentication. But, ofcourse, unsuccessful. I'm getting an error:

{"The authentication endpoint Kerberos was not found on the configured Secure Token Service!"}

This is code for connection (for AD authentication type):

OrganizationServiceProxy orgserv;      
ClientCredentials clientCreds = new ClientCredentials();      
ClientCredentials devCreds = new ClientCredentials();        
clientCreds.Windows.ClientCredential.UserName = "user";        
clientCreds.Windows.ClientCredential.Password = "P@$$w0rd";        
clientCreds.Windows.ClientCredential.Domain = "myDomain";        
IServiceConfiguration<IOrganizationService> orgConfigInfo = 
ServiceConfigurationFactory.CreateConfiguration<IOrganizationService>(new Uri("https://myCRMServer/myOrg/XRMServices/2011/Organization.svc"));        
using (orgserv = new OrganizationServiceProxy(orgConfigInfo, clientCreds))        
{          
     orgserv.ServiceConfiguration.CurrentServiceEndpoint.Behaviors.Add(new ProxyTypesBehavior());
    orgserv.EnableProxyTypes();          
     connection = orgserv;        
}

I found somewhere that for claim based authentication is enough to send only UPN (User Principal Name). But the same error happens. I also tried with username/password combination and it was unsuccessful.

AuthenticationCredentials authCredentials = new AuthenticationCredentials();

...

authCredentials.UserPrincipalName = "user";

...

authCredentials.ClientCredentials.UserName.UserName = _userName;
authCredentials.ClientCredentials.UserName.Password = _password;

Does anyone had similar problem or any good tutorial for CRM and custom STS configuration? 

Thanks in advance,

L