Please see our blog post in :

http://blog.cloudfoundry.com/post/8713844574/rabbitmq-cloud-foundry...

FAQ : 

http://support.cloudfoundry.com/entries/20334618-rabbitmq-service-faq

Getting Started Guides :

Rails : http://support.cloudfoundry.com/entries/20334591-getting-started-wi...

Spring : http://support.cloudfoundry.com/entries/20322602-getting-started-wi...

Sample Applications :

https://github.com/rabbitmq/rabbitmq-cloudfoundry-samples

Blog posts :

Spring : 

  rabbit-chat : Chatting in the Cloud

  http://blog.springsource.com/2011/08/16/chatting-in-the-cloud-part-1/

NodeJS :

  SockJS : Web Sockets like API for the cloud

  http://www.rabbitmq.com/blog/2011/08/16/using-the-rabbitmq-service-on-cloud-foundry-with-nodejs/

Grails :

  Grails + RabbitMQ + Cloud Foundry: Messaging in Cloud Foundry

  http://cjharris5.blogspot.com/2011/08/grails-rabbitmq-cloud-foundry-messaging.html

  Cloud Foundry + Grails + RabbitMQ: Tracking Messages in the Cloud

  http://cjharris5.blogspot.com/2011/08/cloud-foundry-grails-rabbitmq-tracking.html

  Cloud Foundry + Grails + RabbitMQ - Publishing Messages into the Cloud

  http://cjharris5.blogspot.com/2011/08/cloud-foundry-grails-rabbitmq.html

  RabbitMQ: Enabling Grails full text search on Cloud Foundry

  http://blog.springsource.com/2011/08/29/rabbitmq-enabling-grails-fu...

RabbitMQ Console :

  Accessing the RabbitMQ Console in Cloud Foundry
  http://joe.blog.freemansoft.com/2011/11/accessing-rabbitmq-console-in-cloud.html