As a happy (if that's possible :-) user of Twisted and Nevow, please add the snippet below to the Success Stories page if you'd like. Since I'm delurking now, I might as well 'fess up that I run Twisted on Windows for development (I'm part of the silent mass of Windows users that Glyph was looking for), but I use Linux for production. And since the performance of PostgreSQL sucks on Windows (at least up through PostgreSQL 8.0), I only do heavy duty testing on Linux. I have looked at the skipped Twisted tests on Windows, but have not yet found any that I could fix myself. Though if anyone has suggestions I'd be welcome to devote a little time to helping out. Here's some general feedback: 1. Core of Twisted is really solid. Design is excellent, and almost all problems I encounter have already been taken into account in API. 2. I've gotten burned when trying to keep synchronous-style code synchronous, like by using the naughty deferredResult. I did it (just in my admin tool) even though you guys say not too. The only way to learn not to do it is to touch the flame and get burned. 3. Nevow is still moving a lot, but you guys know that. Parts of it are as good as Twisted. Even though I initially loved stan, I got wacked by its performance and had to move to more string based rendering, since my app is really dynamic I can't use standard type templates at all. Keep up the good work! Cheers, Christian --Begin-- Botonomy LLC is a small software firm in the Philadelphia area. We help small teams solve large problems. Our first application, ProjectPipe (http://www.projectpipe.com), is a hosted project management solution that provides midsize teams with everything that they need to manage IT projects. We have built our hosted application infrastructure atop Twisted, Nevow, PostgreSQL, and Jabber/XMPP. Twisted's multi-protocol support has been one of the key enablers of the unique technical architecture that we employ in our product offerings. The core Twisted development team consistently demonstrates a strong commitment to delivering robust, high quality software. Twisted's documentation is accurate and concise, and the expertise and helpfulness of the larger developer community is second-to-none. When evaluating the technologies on which you are staking your business, you need to evaluate both the code and the community that surrounds it. Twisted passes with flying colors in both regards. --End--