Today Google announced experimental support for OAuth 2.0 with bearer tokens. In addition, as a side announcement they've launched a new consent page for OAuth 2.0 designed with cleanliness and simplicity in mind.
Today, OAuth 2.0 is on revision 13 and Google is currently supporting version 10 with its APIs. The two supported workflows for OAuth 2.0 are:
- Client-side for JavaScript applications running in a browser
- Server-side for web applications with servers that securely store persistent information
- Must register your application with Google with Name and Callback URL
At present, only the Python client library has been made available, but Google is actively developing a series of client libraries.