The Mobile Web Components are:
– collapsible list
– scrollable area
– pop-up menu
– sliding drawer
– slideshow
and miscellaneous components like buttons and sparklines.
The components are developed in HTML, CSS and JavaScript and can be downloaded here:

http://projects.developer.nokia.com/mobile_web_components

Take a look at them and perhaps you like them more than JQuery Mobile or Sencha Touch etc. components? Who knows.