The jQuery Mobile framework has a pages model similar to the one that was in use 10 years ago in WML. The mobile telephone downloads one big html file that includes separated div elements for each one of the pages. This model allows the user to navigate between the pages without forcing the mobile telephone to refresh its content.
I have recently completed to develop the second topic in my jQuery Mobile on going course. It focuses on the jQueryMobile pages model. You can download the slides of this topic and watch the video clips available below. I believe they will assist you with understanding the jQueryMobile unique pages model.