Now that gnome shell is actually running in ThinLinc, we should consider adding a predefined profile for it. It will need some extra logic though to make sure it doesn't trigger because of Gnome 2 or Unity.
Commit 27256 adds a screenshoot of Gnome 3 desktop (gnome-shell) and a profile stanza for gnome 3.
Tester should verify that profile works as expected.
I'm not getting any screen shot on Fedora 18.
(In reply to comment #3)
> I'm not getting any screen shot on Fedora 18.
Fixed in commit r27296
Tested on Ubuntu 13.04. Profile shows up correctly after installing the gnome-shell package, and appears to do what it's supposed to.
Gnome Shell however fails to start on 13.04. A new bug (bug #4644) has been opened for this, and can be handled separately. Closing.