Originally, I was trying to develop an application for the mobile devices (ie. smart phones, tablets, eReaders, etc) using javascript and CSS. I came to a road block and someone suggested I should use jQuery Mobile to simplify my life.

But, I see that there's a lot of examples on the web for jQuery and it appears to be more flexible then jQuery Mobile.
Can I use jQuery to develop an application for the mobile devices? Or am I force to use jQuery Mobile for this?