Is the websockets protocol (ws://*.herokuapp.com) supported by heroku or must you use udp? I suspect it is not, since it seems to involve ports 1080 and 1081. It would be useful to note this on the main page.
Thanks for sharing.
If you have need of Websockets, the same codebase does also work with Nodejitsu. Use their "env" variables (rather than "config" variables) to specify the MongoDB and app settings.
Yes, Heroku Cedar doesn't have websocket support AFAIK. Will make a comment. Cool - good to know about jitsu!