Ape 0.7 Released
Ape (short for Adaptable Persistence) adapts Zope objects to storage on the filesystem, in relational databases, or practically anywhere else. It combines the advantages of transparent object persistence with arbitrary databases and formats. It is especially designed to work with ZODB, but can work independently of both Zope and ZODB.
Give it a spin. This is still an alpha release because there are some unstable APIs, but with help a beta could come soon.