Based on Public Post Preview 1.3 by Matt Martz and Jonathan Dingman.
Unlike Public Post Preview, Simple Preview can be accessed by more then one user.
Deactivate the simple preview plugin through the Plugins WordPress Admin...
Upload the folder to your wp-content plugins directory, overwriting the previous version...
Activate the plugin through 'Plugins in WordPress or by using the link provided by the plugin installer...
Public Post Preview used the option as array to store preview state genius.
This also allows for the preview to be turned off by default...
To simple preview for specific post, check 'Allow Preview and save the post.
To disable, uncheck the box and save the post again...
Browse the code, check out SVN repository, or subscribe to the development log by RSS...
Read more