Auto-Save: Imagine this scenario. You’ve sat down to write a blog entry or a really long reply to a thread. Like a mad composer, you are banging away on the keyboard typing away furiously; your words and ideas are flowing freely into the editor. In an unfortunate twist of cruel fate your foot kicks the power outlet and unplugs your computer. Your computer shuts down as you begin to panic – the panic slowly transforming into agonizing rage. Well, there is good news! The new CKEditor automatically backs up your work every 30 seconds (this is adjustable). You curse the skies, successfully reboot your computer and navigate back to the page where you were writing the content, click the “Restore Auto-Save” button and magically – your masterpiece is now restored. Nothing has been lost!
That's the official blurb. I can sleep easier at night now thanks to auto-save.