The first step for implementing quotas around users and groups was made a long time ago. User retrieval and implementation of usage tracking is well on its way.
The design document referenced [1] sets out a design for enforcing user quotas. It is the last part of user quotas. Feedback and comment welcome, Wilfred [1] https://docs.google.com/document/d/1yCZSoHTrsistHktmPwgreY05u26eI35XwOYdHWP0LrQ/edit#
