Pixate is a free platform for creating the user interface of native mobile apps with CSS. It is actually a graphics engine that transforms CSS into scalable graphics, bitmap effects and more.
jQ.Mobi is a fresh and open source JavaScript framework that focuses on providing a great experience on both of the dominant mobile operating systems with a tiny footprint and code efficiency.
QuoJS is a micro, modular, Object-Oriented and concise JavaScript Library that simplifies HTML document traversing, event handling, and Ajax interactions for rapid mobile web development. It allows you to write powerful, flexible and cross-browser code with its elegant, well documented, and micro coherent API.