AJAX - Offline Access and Permanent, Client-Side Storage
Imagine if web applications could store megabytes of data on the client-side, in the browser, both persistently and securely. No server needed.
Imagine if web applications could work offline with the click of a button. Want to access your web based word processor when you are not on the network, with your private files stored privately, right on your own machine and not on some server? Now you can.
Even better, imagine if all of this worked across the existing web; 95% of the existing browsers on the web could start using these features right now, with no software installs or funky new browsers.
What could you build if you had these tools? How about a truly collaborative, web-based word processor with client-side storage for your private documents, as well as offline access? Maybe an Ajax RSS aggregator with client-side caching of the feeds you read and offline access? An offline, web-based book reader using data from the Internet Archive’s Open Library would be cool.