When you click on the image and drag it in Firefox, it drags smoothly.
[url removed, login to view]
When you drag the image on an iPhone or iPad, it drags but jerks and is not smooth.
Please make this work on an iPad and iPhone as well as Firefox.
My iPhone uses iOS 2.1.
Please do not bid on this project unless you have an iPad or iPhone and can test the link and understand the problem.
Please see the beginning of a solution above under project clarification section. It seems to work a bit better on this test page: http://jsfiddle.net/kTWwr/5/ Thanks