jQuery Offline is yet another new project from the seemingly unstoppable Yehuda Katz. This one provides wrappers around jQuery’s JSON fetching functions that will cache initial responses and hit the cache if your user is offline.

When coupled with Rack Offline this seems like the start of a very simple way to develop javascript heavy apps that survive a loss of connectivity, leaving the developer to focus on the trickier stuff like synchronising changes made by multiple users.