The goal of the Data Portability Project (name is a work in progress) is to make it easy to transfer data from one service provider (e.g. Google) to another (e.g. Microsoft).
See Data Portability Project Overview
This is very much a work in progress. We are working with partners to define the architecture and implementation. Please DO NOT RUN THIS CODE IN PRODUCTION, it has not had adequate security, privacy or productionisation testing or reviews done on it yet.
Please contact portability-discuss@googlegroups.com with any questions or comments.