jQuery Mobile http://jquerymobile.com/
jQTouch http://jqtouch.com/
DHTMLX Touch http://dhtmlx.com/touch/
Mobilize.js http://mobilizejs.com/
The M Project http://the-m-project.net/
WebApp.Net http://webapp-net.com/
Wijmo http://wijmo.com/
960 Grid on jQuery-Mobile
http://jeromeetienne.github.com/jquer...
NimbleKit http://www.nimblekit.com/index.php
Touchy™ Boilerplate http://labs.doat.com/
PhoneGap http://phonegap.com/