[chef] Rails deployment scenarios - capistrano vs application cookbook

[Ryan Richards < >]

Hello chefs:

Ive been using chef for some time but have yet to use the application 
cookbook and the deployment resource. Most of the applications i work with 
are ruby on rails. Traditionally capistrano is the deployment tool of choice 
but it seems that if you already use chef for managing infrastructure, the 
'application' cookbook would be good to have in the toolbox. 

Im currently working on a project where we use capistrano and the opscode 
platform. We are starting to cross the boundaries between typical development 
activities and actions that could benefit from some of the chef 
'intelligence'. Are there many rails apps that use application and 
chef-deploy to replace capistrano? (i believe you need both resources?)

thanks for any insight
Ryan