Zend has opened up even more access to the inner workings of their Framework today with the opening of a Subverstion repository for public consumption.

The repository is open to anyone and supports anonymous checkout of any code inside. They provide details for the repository's use, including which branch to check out.

Of course, only contributors can commit to the repository (the entire tree), but certain teams/groups in the community will have limited commit access too.

If you'd like more information about becoming a contributor, see this question on the Framework FAQs.