A Gmail feature "offline" which had been available in Gmail as a lab feature now is graduated from lab after a year long modification and debugging and is now availalble to all
What specific about this feature
1. you can use Gmail when no internet connection
2.you can choose which messages get downloaded for offline use
3.the ability to send attachments while offline
How to avail this feature
1. Click the "Settings" link in the top-right corner of Gmail.
2. Click the "Offline" tab.
3. Select "Enable Offline Mail for this computer.
4. Click "Save Changes" and follow the directions from there.
Googland: [G] Offline Gmail graduates from Labs