Gopronto is correct I do control iTach units from my pc and the pc is controlled by a pronto. There is no reason why a pronto can not directly control an iTach, in fact it should be quite easy. I do control itachs directly from an iPad using command fusion.

Functionally from a programming standpointCommandFusion using Javascript and Pronto using Prontoscript are quite similar, after all javascript is javascript. They differ in the way the graphics are interfaced to JS. Having used both I actually prefer the Commandfusion editor (GUIdesigner) and the overall concept that the same output file from the editor will drive the renderer on an iPad (iViewer) and on an Android device (in Beta at this time).

Also debugging is cleaner on the command fusion system as they just use the Javascript debugging capability of either Chrome or Safari.