Thanks. Now I get it. So the inner hammock uses the end channel technique as opposed to the Warbonnet style "knob" and the out hammock has bungee in its end channel and hangs from amstell of the inner. Cool.
The magnet part seems to be what I thought but wasn't sure because of the other questions. All in all to me it seems like a good approach, especially for the flexibility it gives with regards to what you put between the layers.