GoogleCloudPlatform/gcloud-node — pull request #37 by rakyll (2014-07-29 21:52:10+00:00)
Title: Creating a Service Accounts generates .json not .P12

Looks like there was a minor change to the file the Google Developer Console generates. It is now a .json file instead of .p12. We should update the Quickstart section of the README and steps to generate a .PEM.