Out of curiosity I recently Google'd what Jenkins plugins are available for Cloud Foundry.
Interestingly - for me at least - the approach the developers have taken is quite different to the direction I approached for the Go CD Cloud Foundry plugin.
While my plugin is focussed on detected when an application has been pushed, the Jenkins plugin supports the process for pushing an application.
So, if you've made it to my github or this blog and you were looking for a plugin for pushing - sorry, my thought process was a little different.
In the interests of shameless self-promotion, here's a link to my github repo: