We've renamed our "GeoJSON" package to "geojson", uploaded the first beta release, and plan to finalize it within a couple weeks.
Geojson provides geometry, feature, and collection classes, and supports pickle-style dump and load of objects that provide the lab's Python geo interface. Here's an example of a round-trip through the GeoJSON format:
The geometry classes interoperate with Shapely via the geo interface:
A manual is forthcoming; for now there are many doctest examples. We would appreciate your giving it a try, which is as easy as:
$ easy_install geojson