Rajeev Dayal post a presentation about building large AJAX applications with GWT 1.4 and Google Gears. Topics discussed include an overview of GWT, integrating GWT with other frameworks, GWT 1.4 features, developing large GWT applications, integrating GWT and Google Gears, the architecture of a Google Gears application, Google Gears features and the Google Gears API.

Source: InfoQ.

Gear 0.3 released with following features:

• Support for Firefox 3

• Ability to create desktop shortcuts

• Improved support for customizing the installation flow and permission dialog

• Better support for sending complex objects to workers

• Detailed progress events for managed resource store updates

Source: Gear API blog.

Brad Neuberg wrote an intresting post in his blog about using Google Gears on a Weblog This post contains a lot of examples an link to the similar article with useful information on this topic.

Source: Coding in paradise.

Google Gears is an open source browser extension that lets developers create web applications that can run offline.

With help of JavaScript API and 700K size plugin for IE 6.0+ and Firefox 1.5+ you can enable your applications to be offline.

Google Reader is first Google application which demonstrate offline functionality.

Check API on the Google Gears web page