Ratchet enables you to build mobile apps with simple HTML‚ CSS‚ and JS components. Ratchet 2.0 is now part of Bootstrap Organization. Twitter Bootstrap is in itself a Sleek, intuitive, and powerful front-end framework for faster and easier web development. Checkout the components page which showcase the common Design patterns that serve as basic building blocks.
Ratchet 2.0 would be a great companion to build Phonegap / Apache Cordova apps.

Ratchet 2.0

Ratchet Components

Ratchet on Bootstrap Blog