We're running vB for over 10 years now and are currently running 3.8. We've been considering a vB4 upgrade for some time now. The license has already been purchased but unfortunately we have several custom modifications that need to be coded as part of that upgrade. We've also been hesitant due to the mixed feedback vB4 has received. This got me thinking, if we're essentially starting from scratch with a vB4 upgrade, we might as well consider all of our options. From what I've seen of xF so far, I'm impressed. I have a few questions: 1. What is the current stage of development? Is xF considered stable for large active communities by now? How often are updates being rolled out? 2. How soon until Blog functionality will be added? If a vB were to switch to xF, is it a fair assumption to assume that when blogs are added to xF, an importer could be used to import old blogs from the old vB database at a later date? 3. Where can we find a list of "hacks" created to date, sorted by popularity? (Perhaps some of the common ones from vB that we use have already been created) 4. Where can I find websites and/or contact info and portfolios for some of the top xF skin designers? We have several PSD's for our new design that we'd want created as a skin. 5. Same as Question #4, but in regards to custom modders, programmers, or companies who work with xF from a development perspective. We'd be much more prone to switch to xF if we can hire somebody for custom development of any "must have" features we require. 6. How does the build in SEO compare to the popular vBSEO addon for vB? 7. Does xF support paid subscriptions for custom membership levels and usergroup permissions? Thanks!