I have few people/group picker on an InfoPath form. It's working fine but it populates the field with username (without the domain and that's fine).

However, I need this to be "Display Name" or full name instead of user name. Now I know a long way to set this up based on hooking to userprofile web services.

If there is no out box way then I guess I can have C# code to get the name without calling the webservices. Basically, I want to minimize server/client communication.