The jQuery Reference escorts you whereever you go. You will have the documentation at your fingertips whenever you need it.
jQuery Reference contains a copy of the current jQuery API (including jQuery UI) optimized for fast access on your iPad.
Enter a search term and the reference of the matching function will be at your fingertips.
In case you do not know the functions name, you can browse thru the sorted list of categories.
To make this a perfect match for you there is also a small Developer Sandbox included which you can use to test examples without leaving the app.
The content of the jQuery and jQuery UI documentation is completely integrated and does not need any internet access.