http://james.padolsey.com/javascript/why-create-a-jquery-plugin/
Why create a jQuery plugin?

http://www.learningjquery.com/2007/10/a-plugin-development-pattern
A Plugin Development Pattern

https://github.com/ToddThomson/jQuery-Mobile-Subpage-Widget
JQM Subpage Widget

(function( $, undefined ) {
})( jQuery );

"mouse" plugin,
(function( $, window, document, undefined ) {
})( jQuery, window, document );

event, core, transition, dialog, init:
(function( $, window, undefined ) {
})( jQuery, this );

// "Cowboy" Ben Alman?
(function( $, window ) {
})( jQuery, window );