I've been playing with rails 3.1.0.rc5 for sometime. Asset pipeline seems a great way to organize style and scripts, but when it comes to images - didn't quite work for me. Even now, something as simple as showing up a favicon on production server is a herculean task. Not sure how many of you have created an app and gone up to production with the new framework, but there are many unanswered questions. - @bubble