HTML Drag And Drop On Mobile Devices
jQuery UI Touch Punch just solves it all.
It's a Touch Event Support for jQuery UI. Basically, it just wires touch event back to jQuery UI. Tested on iPad, iPhone, Android and other touch-enabled mobile devices. I used jQuery UI sortable and it works like a charm.
http://touchpunch.furf.com/
There is a new polyfill for translating touch events to drag-and-drop, such that HTML5 Drag And Drop is utilizable on mobile.
The polyfill was introduced by Bernardo Castilho on this post.
Here's a demo from that post.
The post also presents several considerations of the folyfill design.
I needed to create a drag and drop + rotation that works on desktop, mobile, tablet including windows phone. The last one made it more complicated (mspointer vs. touch events).
The solution came from The great Greensock library
It took some jumping through hoops to make the same object draggable and rotatable but it works perfectly
The beta version of Sencha Touch has drag and drop support.
You can refer to their DnD Example. This only works on webkit browsers by the way.
Retrofitting that logic into a web page is probably going to be difficult. As I understand it they disable all browser panning and implement panning events entirely in javascript, allowing correct interpretation of drag and drop.
Update: the original example link is dead, but I found this alternative:
https://github.com/kostysh/Drag-Drop-example-for-Sencha-Touch