I just looked through a few parts of the Zope3 CVS tree, and I must say it's looking mighty nice so far at the 50,000 foot level... I especially like the Zope.Transaction package; it'll eliminate the need for my ZLite.Transaction hack. Indeed, much of the package-level refactoring seems much more friendly to those of us who'd like to pick and choose the parts we use. The Zope.Publisher and Zope.App.ZopePublication packages look cool too. Very nice configuration system, with meta-configuration, even. Very awesome. I can see how this will make it easier to create products that influence other products, although I'm not sure how the import order works out; haven't gotten that far just yet. Nonetheless, this is all *really* impressive stuff. So far, the only thing that's been at all negative is that many of the 'IFooBarBaz' interfaces seem a little confusing as to what they do, in that their names don't seem very obvious or self-documenting, at least to me. But I promise that once I *do* figure out what they do, I'll try to suggest more evocative names. :) The interfaces in the tutorial could use improvement similarly; again if I can think of anything better I'll try to suggest naming conventions. P.S. Speaking of naming, I still dislike "feature" as a term for interface implementations; various suggestions available on the "Feature" page of the ComponentArchitecture Wiki. :) P.P.S. You guys must've been *really* busy on this... I'm really impressed. The new stuff so far seems like a breath of fresh air where Zope internals are concerned. Kudos!