Offline access to Google Docs

This is a pretty sweet deal for those of us who use Google Docs (because they rock)! Now you don't even need an internet connection to modify them!

P.S.
I haven't been able to get this to work like the video says -- I don't see the green circle or anything linking me to a download of 'Google Gears' and I haven't seen the "Offline" link in the top right-hand corner.
Anybody have any ideas?

Official Google Blog: Offline access to Google Docs