Adding custom launcher items
You can add a custom launcher in Ubuntu 11.10 by typing this in a Terminal
gnome-desktop-item-edit ~/Desktop/ --create-new
Once you have customized the item on your Desktop, drag it to the Launcher.
Actually, I created the shortcut to another location that I wouldn’t want empty (I keep my Desktop as clean as possible) because otherwise my launcher icon failed once I deleted the desktop icon.
Restoring the ability to add emblems in Nautilus
The ppa has changed since all the blog posts explaining it but you get a message like this:
This PPA is obselete
please use either
______Daily build PPA
______Official Release PPA
More info: https://launchpad.net/~dr3mro/+archive/nautilus-actions-extra
and it is easy to make the modification. I used ppa:nae-team/ppa