
Mail: Offline mail has most functionality and will leave message in Outbox for sync.
Calendar: When offline, you can view events and RSVP to appointments.
Docs: You can view documents and spreadsheets offline.
You need to download a plugin to Chrome for each of these to work.
- Chrome - http://www.google.com/chrome
- Offline Mail - https://chrome.google.com/webstore/detail/ejidjjhkpiempkbhmpbfngldlkglhimk?hl=en-US&hc=search&hcp=main
- Offline Calendar - https://chrome.google.com/webstore/detail/ejjicmeblgpmajnghnpcppodonldlgfn?hl=en-US&hc=search&hcp=main
- Offline Docs - https://chrome.google.com/webstore/detail/apdfllckaahabafndbhieahigkjlhalf?hl=en-US&hc=search&hcp=main