does no harm, and useful to be able to hack, drop things in there which consume the REST API / model.  bl.ocks wouldn't let us do that would it?  agree it's not needed for the app, but makes trying out new things quite a bet easier.  also as a place to go to look things up, nicer if it's right inside the app.

in short i like it but if it isn't useful after a few months then okay getting rid of it then.