More did not use Gmail offline, or are not sure that this is really you need? Then we will simply list the features that have Google email and they help to determine the answer to this question.
1. Create a shortcut to access Gmail directly from the settings page.
2. Using Gmail as a separate application using Google Chrome.
3. The availability of some of attached files to messages offline.
4. To continue to work with letters (read, delete, reply) when disconnected from the network, all of these actions will be executed after the connection is restored.
5. Convenience for Gmail users with a weak link.
6. Even with a good capacity of your channel, you can speed up the work with Gmail. After quickly download information from your local computer rather than from the network.
7. Many features guglopochty stay with you even if disconnection of Internet access. This topic, and hot keyboard shortcuts, and even labs.
8. Possibility to download messages from multiple accounts and switch between them
9. Switching between offline and online modes goes unnoticed, you will not need to manually synchronize the information
10. This is the best implementation of offline apps from Google
Well, now the choice is yours!
via 10 Good Things About Offline Gmail