Citytracking/dotspotting — Issue #15: JSON export should encode coordinates as numbers, not strings
Author: shawnbot
Created: 2011-11-03 01:36:37+00:00
State: open

Our GeoJSON is invalid, [per the spec](http://geojson.org/geojson-spec.html), which causes [problems with Polymaps](http://bl.ocks.org/1335413).