Don´t know if you have seen http://www.jqtouch.com/
instead of iUI which seem to be stalled.
I have just started to look at ruby and find it interesting especially since our GSD device use ruby.
My goal is a html socket like server within a gsd device based on true websocket or Orbited (Ajax long-polling).
I have a couple of possible solutions for a web based Orbiter with bi-directional communication. Which mean lmce can send command and events to it.