A long with some of my work colleagues we recently built a jQuery Dial/Knob UI control that we decided to open-source and share with others. We tested it against the following browsers:

• Chrome 23
• Opera 12.11
• Safari 6.0.2
• Firefox 17
• IE6+

Check out the project page, for instructions on how to use it and a working example. Let me know about your thoughts or indeed any issues.