Excerpts from Anders Engstrom's message of Mon Mar 08 13:04:18 +0100 2010:

Mon Mar 8 12:37:04 CET 2010 Anders Engstrom * X.A.PhysicalScreens cleaning and allow cycling Remove redundant import to supress warning, did some refactoring to use xmonad internal things to find screens instead of using X11-stuff. Also added ability to cycle between screens in physical order.

Mon Mar 8 12:43:18 CET 2010 Anders Engstrom * X.L.LayoutScreens split current screen This patch will allow the user to split the currently focused screen instead of all screens together. This is usefull for multiscreen users who have functioning xinerama, but wish to split one of the screens.

Mon Mar 8 12:50:22 CET 2010 Anders Engstrom * X.U.Dmenu helpers to run dmenu with arguments

Mon Mar 8 12:54:02 CET 2010 Anders Engstrom * X.U.WorkspaceCompare xinerama compare with physical order Like the old xinerama workspace comparison, but order by physical location just like X.A.PhysicalScreens. Useful if using xinerama sort for statusbar together with physicalscreens.

All applied, thanks!