I think it's awesome that you're excited for Rails 3. I'm incredibly excited for it. Lots of great stuff happening. But. (And that's a big but). I think you mi

I think it's awesome that you're excited for Rails 3. I'm incredibly excited for it. Lots of great stuff happening. But. (And that's a big but). I think you might overestimate the philosophical changes that are going on here. Seeing pipe dreams and unicorns where there are simply just incrementally improved ideas and work horses. The rate of improvement in the Rails camp is not going to change because of anything fundamental to Rails 3. It might change because we're running out of big problems to deal with, but I also somewhat doubt that. So that means that yes, you will have to change your application every 6 months, if you want to keep up with the latest and greatest. But you don't have to. You never had to. A Rails 2.3 application, for example, could have been chugging along just fine for the last 12 months (2.3.0 released March '09).