With the Double-Click-Drag binding ability that Bob added, drag binding variations without modifier keys on the iPad become more feasible. Since the Double-Click-Drag is easy to do with a mouse also, you don't really need separate instructions for iPad and keyboard usage.
I've only tested this on Mac and iPad Safari. I'm interested in how the following works on other browsers and platforms. I'm especially interested in behavior on touch screens other than iPad.
1) Go to http://chemagic.com/JSmolVMK.htm
2) On the load page, "duplicate" the default model.
3) Click the move button to go to the move screen.
I hope the move screen instructions are sufficient in explaining individual model translation, rotation, and conformation rotation. At present, I need to switch conformation rotation on/off with page links. But I really think some of the mouse bindings that Bob created will allow removal of this on/of switch link. That would lead to total control of small models with mouse or touch. You can't get much closer to the old Prentice Hall models than that.
I don't have the page set up for convenient shift to wireframe rotation, but that will improve iPad speed.
Any testing of the above points would be appreciated.