I am currently brainstorming ideas for visually representing Parent->Child->Grandchild relationships on small screens like the iPhone 5/6.
One concept I had in mind was to create a representation similar to Fusion Chart, as discussed in another question about multi-level pie charts dynamically with JavaScript, CSS 3, and HTML 5. However, I have not been able to make significant progress with this approach.
If anyone has alternative ideas for how to effectively represent these relationships on small screens, I would greatly appreciate it.