FBML

(::) This is a tip to automatically start conky while logging into your GNOME 3 desktop.

[*] Create an ordinary file in your ~/.config/autostart directory.

NOTE: If the ~/.config/autostart directory is not present, you will have to create it.

[*] Now enter the following data in the file.

[Desktop Entry]
Type=Application
Exec=/usr/bin/conke
Hidden=false
X-GNOME-Autostart-enabled=true
Name[en_US]=conky
Name=conky
Comment[en_US]=light-weight system monitor for X
Comment=light-weight system monitor for X

[*] save and close the file.

[*] Lastly rename the file to [ conky.desktop ]

That is it. Next time you start GNOME 3, conky will automatically start running.

TESTED ON UBUNTU 11.04 GNOME-SHELL 3.0.2


for more info :
http://linuxandfriends.com/2011/06/01/how-to-add-startup-programs-in-gnome-3/ - Jun 19 2011