notion
Tabbed, tiling window manager.
... include:
* Workspaces: each workspace has its own tiling
* Multihead: the mod_xinerama plugin provides very nice dual-monitor support
* RandR: mod_xrandr expands on mod_xinerama and picks up changes in the randr configuration without the need for restarting Notion
* Extensibility: Notion can be extended with lua scripts.