Google joins the group of companies trying solve the offline web application problem with Google Gears. Released as an developer oriented open source technology, under a BSD license, as a new browser extension. It provides 3 significant components to the browser ecosystem. A multithreaded javascript environment, which provides a restricted background taks JavaScript environment for accessing remote data source without blocking the main UI. Adding support for local data storage is a new set of javascript APIs. The storage support transactional data based on SQLite. The last part is local application caching wich hosts data locally and pulls down updated data . So the other The plugin and SDK is released under a BSD license. The first Google app released as a Gears enabled example is Google Reader with offline capabilities. The Google Web Toolkit will add support for Gears to facilitate the easy of adding offline support to Google Web Toolkits
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