title: A/B framework for Rails 3?
body: <p>Is there anything like ABingo or Vanity that works in Rails 3?  I know there's Google Website Optimizer, and Visual Website optimizer, but I need more power w/ regard to determining what is displayed, and what is in turn tracked than they can provide.  If not, I'll even take thoughts on frameworks that are relatively simple enough that I might be able to convert them to Rails 3 compliance easily.</p>