I have created this:
https://github.com/eclipse-rap/org.eclipse.rap/issues/398
Has working code, minimal atomic changes, detailed explanations, etc.
I will develop & submit further and probably submit a PR in the very near future.
I am hoping NetXMS will use this to enable the content within panes in the UI to respond to touch nicely with Apple devices (especially the network topology diagram maps).
Nice project. I'm really glad I found NetXMS here on the other side of the pond.
:-)