So what's Champlain? It's a Clutter based canvas that supports numerous free map sources such as OpenStreetMap, OpenArialMap and Maps for free. The canvas can also be embedded in any Gtk2 application.
This is a first release so some bugs might be lurking around, although in all honesty there's barely any code in this bindings. At the moment the module is not well documented nor tested. I plan to address this in the following releases. I'm also waiting for libchamplain to freeze a bit more it's API.