Its an interesting new concept. I use XFCE almost exclusively, but have used Gnome-Shell quite a bit in the past, and do like it. So if your in the minority and not a Gnome hater.....
http://www.webupd8.org/2014/07/xfdashbo ... buntu.html
XFDASHBOARD: GNOME SHELL LIKE DASHBOARD FOR XFCE
Written by Andrew | Date: Thursday, July 03, 2014
Xfdashboard is a GNOME Shell like dashboard for Xfce: it displays an overview of the currently open applications, allowing the user to switch between them, an application launcher / finder as well as a workspace selector.
Xfdashboard Xfce Xubuntu
windows view: shows all windows of the current workspace (with live previews) - you can use this to switch between applications / windows or close them;
applications view: it's like a menu, showing all installed applications with categories, etc. - using this view, you can launch applications or add them to your favorites (which will add a shortcut in the quicklaunch / left panel);
favorites: you can add application shortcuts to your favorites - the shortcuts will be displayed in the left panel, just like in GNOME Shell. To remove an application from the favorites, drag and drop it onto the application icon (first icon from the top) - the icon should turn into a delete icon while dragging one of the favorites;
search view: when you start typing, a search view is displayed, useful to quickly find and launch an application;
workspace selector: shows each workspace with live window previews in their stacked order. Note that the live previews might not work if you're using a window manager that doesn't allow this, such as Xfwm4 (in that case, only non-minimized windows of the current active workspace will be updated and the application icon will be displayed for the other windows). You can switch between workspaces by using the mouse wheel (in which case Xfdashboard won't be closed) or by simply clicking on a workspace (in which case, Xfdashboard will be closed);