If you ever wanted to get rid of the 300ms delay between a physical tap and the the firing of a click event introduced on mobile browsers then the polyfill those guys from Financial Times created is the answer you are looking for.
Available on GitHub, FastClick is a simple, easy-to-use library for eliminating that delay and make your application feel more responsive to, for example, the touch of a button.
Have a look and fork the project at: https://github.com/ftlabs/fastclick
You can also give it a try running one of the demos on your mobile device pointing your browser to: http://ftlabs.github.com/fastclick/examples/layer.html (it won't work on your desktop browser as the library doesn't attach any listeners to them).
Fascinating and job well done...