Until today, one of the biggest drawbacks of Gmail is that you could not go through your emails when you were offline.
That changes. Gmail is finally going offline. Google is rolling out a Google Gears version of Gmail that will be available to users starting in Gmail Labs.
Gmail detects when you are offline. It caches your e-mail so that you can read it, respond to it, search it, star it, or label it.
When you are connected to the Internet again, it sends all the messages. You can even open attachments.
Great for home computing when you are not always online, cant wait for it on my mobile though.
Get them here