GitHub Now Visualizes geoJSON (with MapBox and OpenStreetMap)

An e-mail from the folks at GitHub (though we'd already seen the buzz on Twitter) announces new mapping visualization on that platform. (Not sure what GitHub is? See Directions Magazine coverage.) TL;DR: commit a .geojson file to a repository, and GitHub will render any points, lines, or polygons as an interactive map, complete with custom markers and tool tips. Plus, we're using MapBox under the hood, so every thing's...