Regarding the documentation:
It would be good to have well-documented source code (JavaDoc) and updated blog posts.
Additionally, it would also be nice to have a short summary of your work for the end user that could be used for example in the Market description or as the app description at
openintents.org . Please describe the major achievements like new features or visible changes for the end user that were created during GSoC in simple (i.e. non-technical) terms.
(This only applies to GSoC projects that worked on an end-user app, of course)
Cheers,
Peli