Users never have to wait for cached pages to be generated (unlike the page caching that ships with Rails). Inspired by Pivotal Labs' Rails, Slashdotted: no problem I've created this Page Cache plugin to give Rails holeless/seamless page caching. The README and source is on github and here's the blog post explaining how I use it.

Step-by-step guide so you can call "rake blog_theme:update" to update your WordPress blog theme with a Rails layout. View guide