Recently, I've had a few enquiries about Google Summer of Code 2013 and the Go project.
In previous years we have abstained from participating because none of the Go team at Google have had the spare the time to mentor a student.
However, it's been suggested that perhaps some members of Go community might like to mentor a GSoC student. These people should be familiar with the Go core's codebase and conventions. For example, anyone with the commit bit is definitely a good mentor candidate.
If you are interested in mentoring, please reply here. Please note that it is a considerable time commitment.
Once we have mentors, we need to think about projects. A good GSoC project is something that may be started and finished within the three month period. Potential work areas include libraries (either in the core or for sub-repos), tools (vet?), documentation, and - for the particularly clever students - runtime or compiler work.
If you have any project suggestions, please reply here.