Development/Summer of Code/2012
Mentors
This year Robert Kaye, Oliver Charles and Kuno Woudt will probably be amongst our mentors. That's ruaok (Robert), warp (Kuno) and ocharles (Oliver) on IRC, if you want to come and speak to us first. Some potential mentors are listed by each project; this is far from a normative list, but it might give you somebody to ask about the project.
Suggestions
Repository for Creative Commons-licensed reviews
Proposed mentors: ruaok, ocharles, warp
Read-only, browser-oriented site
Proposed mentors: reosarevok, gioele, navap
Location support
Proposed mentors: ruaok, ocharles, warp
Internationalisation
Proposed mentors: nikki
Server Internationalisation links to relevant transifex, language-specific translator pages, and such.
Internationalization is a very old discussion of issues re: internationalization; some may still be useful.
Finishing an iPhone app
Proposed mentors: jdamcd
Extending the usefulness of collections
Proposed mentors: ocharles
Collections might be much more than they are now. Allowing them to work as release subscriptions and allowing free text fields come to mind.
Proposals
About proposals
Before you dive in and send a proposal to us through Google, it's a good idea to take some time and learn about the MusicBrainz community. At MusicBrainz we pride ourselves for having a strong community - most of us know each other in same way, and some of us know each other face to face from development summits.
A good way to get a feel of this would be to lurk around in IRC, or to talk about your proposals on the mailing lists.