Is it necessary to include the core of jQuery, or is the mobile framework sufficient alone? From what I`ve tried, I concluded that both files are necessary, but I would like
http://code.jquery.com/mobile/1.0a1/jquery.mobile-1.0a1.js
Based on the code, it doesn't redefine jQuery but extends it so yes, you need the core.
(function( jQuery, window, undefined ) {
})( jQuery, this );
It passes the jQuery object when defining jQuery.mobile
. See the demo which includes core before mobile.