Use Gmail, Calendar and Google Docs when you are offline

Google allow web applications like Gmail and Google Docs can be used even when no Internet connection, or you can use, eg to write e-mails, and when you are online then all changes will be active.
Unfortunately for users of Firefox, Opera and other browsers, offline support for Gmail is provided through extension Chrome Offline Google Mail. Esktenzijata is in beta and HTML5 is the Gmail application based web application for Tablet PC which has an online and offline post explains Google. Unlike previous Gears, now used by HTML5 local storage options. Once installed, you can continue writing e-mails after you lose your connection to activate the extension Allow offline mail.

As for Google Calendar and Docs, also need to download Google Calendar and Google Docs extensions for Chrome, which is performed by switching from offline to online using web applications.
All three applications allow you to read email, browse through the inbox to view the calendar of events and meetings, and view documents, although it is offline.