Yes, now it compiles under Mono.
However after this pull MonoDevelop complains that the project file is made in Visual 2008 which doesn't support .NET 4.0, but MonoDevelop is able to convert project file to VS 2012 format (anyway, I think it would be a good idea to generally update the project file as Visual 2008 is super obsolete now).
And there are some warnings:
Warning CS0618: `SFML.Window.EventType.MouseWheelMoved' is obsolete: `MouseWheelMoved is deprecated, please use MouseWheelScrolled instead' (CS0618) (sfml-window)
Warning CS0618: `SFML.Window.MouseWheelEventArgs' is obsolete: `MouseWheelEventArgs is deprecated, please use MouseWheelScrollEventArgs instead' (CS0618) (sfml-window)
Warning CS0618: `SFML.Window.Event.MouseWheel' is obsolete: `MouseWheel is deprecated, please use MouseWheelScroll instead' (CS0618) (sfml-window)