How to call a GOOGLE API in C#?

Are there standards for an object representation of a "contact" when requested by a mobile device through an API?

• Windows Live Contacts, Google Contacts, Facebook Profiles, etc.; They all contain information that is useful for today's smartphones: name, phone number, email address, and so on and so forth. I'm wondering if the object returned from an API call to Live Contacts will be structured exactly the same as an API call to Google Contacts, assuming I'm calling for a contact-type object? Are there standards established for what a contact should be (in JSON or otherwise)? I'm asking this because I'd like to know if, when implementing a directory-type application, you can expect that a standardized contact object is returned to you (so just 1 parsing method for all your contact sources)?

• Answer:

  Like many good questions, it more summons the answer than reveals its precedent.  Such standards tend to emerge, most readily between service providers when there is a benefit to the digital commonwealth.  Besides Live, Google and Facebook, I imagine that people at OpenID or Gravatar are the forefront for this, in the 2.0 space.  The default fields in SalesForce are a good generalized representation of a Lead, by comparison.