Not so long ago, at the request of users of my service,
Getting tasks done! Made a version of the task manager as a single html file. Simpatishnaya soft turned out. It works under iPhone / iPod Touch, it can work offline and synchronize with the server.
The size of the application - 55Kb. All scripts, css and images are embedded in html. The
Base64 Online service for encoding pictures in base64 was very helpful in developing.
Who is interested, you can watch the source:
code.google.com/p/offline-gtd