JS library (with drag n drop) compatible with iOS and regular browsers

Here’s two built in jQuery:

http://www.stevefenton.co.uk/cmsfiles/assets/File/mobiledragdrop.html

http://code.google.com/p/jquery-ui-for-ipad-and-iphone/

There is also the jquery mobile framework (which does not have drag and drop nativly):
http://jquerymobile.com/