Google is testing Offline Gmail in their experimental Labs (see your settings).
The idea being that, when enabled, you can open your browser and access your Gmail online and off.
The offline mode uses Google Gears to download your mail to a cache and synchronizes with the Google servers.
You can do pretty much everything offline that you can do online. Any email you send will be saved in your outbox and be sent when you get back online.
There’s a “flaky connection mode” too for when your service isn’t too hot. In this mode is uses your cache and still synchronizes directly to the server.
It’s in beta experimental type mode so it’s not perfect but it’s a nice feature for all those who travel and spend a lot of time on laptops (also for those to ‘borrow’ wireless).
I’m going to give it a shot.
