Great new addition to GMail.
When working offline with the great technology Gears.
When working offline, usually you can’t add attachments whilst offline, but now you can, simply add the attachment as usual whilst offline, and it will add the attachment to your mail and when you connect again, it will send out your email with the attached document.
Unfortunately this does not work for inline images thought, but I reckon they will come up with a genius way around that soon.
This can become very useful, especially with the cellphone networks in South Africa dropping me frequently when on the road. With this feature, all mails go through the ‘Offline Outbox’ and send send the email and this will also result in messages not vanishing due to connection issues.