Free jQuery iphone Plugins
All the Free jQuery Plugins about 'iphone' are listed here.
Overscroll is a jQuery plugin that allows you to create iPhone/iPad like scrolling effect on DOM elements of your page for using in a desktop browser.
Switchy is a fancy and touch-enabled jQuery plugin that turns a standard html select into a slide/toggle switch that allows the visitor to select items by dragging or clicking the slider.
rFrame is an useful jQuery plugin that emulates the view port sizes of a handful (for now) of devices to give you a rough idea of how your web site/application might look on that device.