To view the code and detailed build steps, see the github source.
Source Code - The full project source code is available on GitHub.
Blog - The official blog contains plenty of useful information about future releases and jQuery mobile features.
Getting started guide - A detailed guide providing the fundamentals of jQuery mobile development.
Forums - The official jQuery mobile forum is very active with passionate developers.
jQuery Mobile on Twitter - jQuery mobile's Twitter account is not updated regularly anymore but has lots of useful articles from the past.
Stackoverflow Questions - A number of questions and answers relating to jQuery mobile on Stackoverflow.