Cairo-Dock 3.2 was announced on Friday with improved multi-screen support, a new screenshot applet, a new sound effects plug-in, and distant folders (e.g. FTP and Samba) as well as encrypted disks are handled in the shortcuts applet.
This launcher that's simpler to OS X's dock can be used with GNOME Shell as well as Unity, KDE, and other desktops. Cairo-Dock 3.2 brings in support for systemd for session management, GDM-based user switching, better GNOME Shell integration, support for all Unity indicators, and support for FreeBSD.
More details on the Cairo-Dock 3.2 features can be found from the release announcement at GLX-Dock.org.