* OAuth workflow example.
* Show how to create a Facebook application: set domain (localhost:8123) and enable long lived tokens.
* Can I share my application id&secret to let others use? Can they spoof my application?  Create tokens?
* Error handling in code and token routines
* documentation
* tests and test strategy -- how to test that facebook requests work?
* README.mkd for github
* code review

Extended:
* github project page
* perl advent article
* use in App::PM::website / App::PM::toolbox to create/update/query facebook events for la.pm.org meetings.