On a VirtualBox VM, I have installed the Gnome variant of Ubuntu 13.04 (64-bit), but it looks like Unity:
- There's no menu, just an Activities button on the top left that switches to a screen with a panel on the left and a search box at the top. Running apps appear in the center as small screencaps.
- Applications default to full screen. You can Alt-Tab between apps, but starting another app requires a trip to the Activities screen.
Is this Unity? Or has Gnome evolved in a similar direction?
At the login screen, there is a Session menu: "System default" or "GNOME". I've tried both. There is no difference that I can see.