Client wants iPad & iPhone support for a webapp that has at least one form where DOM elements are dragged around on a (Raphael) Canvas (JavaScript rendered graphic).
Currently, the touch-unfriendly interface to drag items around uses mouse-hover and other mouse states to handle the drag-items interface. I know I'll need a completely different approach for touch screen devices, and am wondering if any fellow Drupal developers have posted their breadcrumbs as they faced this.
Drupal 6 or Drupal 7 does not matter, since this is at the JavaScript layer unless the possible solution requires jQuery only available in Drupal 7.