Nestable is an interactive hierarchical list. You can drag & drop to rearrange the order. It even works well on touch-screens.
jSignature is a jQuery plugin that simplifies creation of a signature capture field in a browser window, allowing a user to draw a signature using mouse, pen, or finger on touch enabled devices (e.g. iPhones, iPads or Android devices).
jSignature captures signature as vector outlines of the strokes. Although jSignature can export great bitmap (PNG) too, extraction of highly scalable stroke movemmovement coordinates (aka vector image) of the signature allows much greater flexibility of signature rendering
Elastislide is a responsive jQuery carousel that will adapt its size and its behavior in order to work on any screen size. Inserting the carousel’s structure into a container with a fluid width will also make the carousel fluid.
TouchTouch is a jQuery plugin that turns a collection of photos on a webpage into a touch-friendly mobile gallery. It works on all major browsers (except for IE7 and below) and most importantly is specifically designed with iOS and Android in mind.