It is possible to completely disable OS X Dashboard. On old Mac’s this could save some memory and cpu resources. Use the following command and kill the current running Dashboard.
defaults write com.apple.dashboard mcx-disabled -boolean true
To make the command take effect, you need to restart the Dock:
killall Dock
Reactivate OS X Dashboard using the command:
defaults write com.apple.dashboard mcx-disabled -boolean false
Restart the Dock.
Screencast:
The Dashboard seams to be a leftover from some ancient OS. Nice to give it the foot.
Thanks for the information.