Apparently not. According to Steve Yegge's letter about Google+ (copy at
https://gist.github.com/chitchcock/1281611), one of the mandates Jeff have asked is to ensure that "All service interfaces, without exception, must be designed from the ground up to be externalizable. That is to say, the team must plan and design to be able to expose the interface to developers in the outside world. No exceptions.", while on the same letter his impression of Google is basically on the other side of Amazon's spectrum, even describing how bad Google's documentation at the time compared to Amazon, Apple, Facebook and Microsoft.