If you have recently done the upgrade to Love Lock (15) and are lamenting the compiz-fusion incompatibility issue,
A: play with the interface, it actually will
do a lot of the nice things the "cube" does.
B: Try installing "Docky" via yum (i.e., sudo yum -y install docky), which allows for quick switching between apps.
I made the switch from 14 to 15 the other day and thought I would go nuts over the seemingly never-ending crashes. Turns out that compiz and Gnome3 really are not good bed-mates!
Also, if you move your cursor to the far upper left hand
side of the desktop, it will go quickly to "Activies".