Raw Atom theme built around Twitter’s Bootstrap CSS framework.
This one uses the Atom 2.0 core, which is in beta stage. So back-up your theme settings before doing upgrades, because most likely you will loose them, as they are not final. You should only use this theme for testing and experimental purposes until 1.0 is released.
A basic demo can be seen on wp.digitalnature.eu (it’s the main site of a multisite installation).
Comments, suggestions and (less obvious) bug reports are always welcome