Pointer.js
Pointer.js consolidates pointer-like input models across browsers and devices.
Snap.js
A Library for creating beautiful mobile shelves in Javascript
Restive.js
The Easiest Way to Make your Website Responsive or Adaptive!
Device.js
Device.js makes it easy to write conditional CSS and/or JavaScript based on device operating system (iOS, Android, Blackberry, Windows, Firefox OS), orientation (Portrait vs. Landscape), and type (Tablet vs. Mobile).
Hammer.js
A javascript library for multi-touch gestures // You can touch this
Jo
Jo is a thin (~12K) candy shell for PhoneGap apps. It's an HTML5 mobile app framework which provides UI widgets, a flexible event model, a wrapper for sound, and a light data layer. Apps are skinnable with CSS3, and work everywhere PhoneGap does... and then some, including Adobe Air and OSX (desktop and dashboard).
Fastclick
Polyfill to remove click delays on browsers with touch UIs
iScroll
Smooth scrolling for the web
Tabris Js
tabris.js - native apps in JavaScript
J Query.mmenu
The best jQuery plugin for app look-alike on- and off-canvas menus with sliding submenus for your website and webapp.
Touch Swipe jQuery Plugin
TouchSwipe is a jquery plugin to be used with jQuery on touch input devices such as iPad, iPhone etc.
Bootstrap Touchspin
A mobile and touch friendly input spinner component for Bootstrap 3.
Slidebars
Slidebars is a jQuery framework for quickly and easily implementing app style off-canvas space into your website.
Ratchet
Prototype iPhone apps with simple HTML, CSS, and JS components.
Vux
Mobile UI Components based on Vue & WeUI
Swipe
a lightweight mobile slider
Slideout
A touch slideout navigation menu for your mobile web apps.