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Dojo Offline is a free, open source toolkit that makes it easy for web applications to work offline. A JavaScript library bundled with your web application uses Google Gears, a small, cross-platform, cross-browser download to help cache your web application's user interface for offline use. The Dojo Offline Toolkit is brought to you by SitePen, Dojo, and Brad Neuberg of Google.
We're currently working with the community and Brad Neuberg of Google to define what's next for Dojo Offline. Stay tuned for more details.